Using a DBENV with DB_LOG_IN_MEMORY and DB_TXN_NOSYNC

Have BDB running as a transaction data store. I create a DB_ENV and before opening it, set the log configuration to use DB_LOG_IN_MEMORY, giving me ACI ( without the D ). What changes ( if anything ) on setting the DB_TXN_NOSYNC on DB_ENV open ?
Thanks, -K

Hi Kedar,
The Berkeley DB log files do not repeatedly overwrite the same blocks of the filesystem as the Berkeley DB log files are not implemented as a circular buffer and log files are not re-used. For this reason, the Berkeley DB log files should not cause any difficulties for Flash memory configurations.
However, as Berkeley DB does not write log records in filesystem block sized pieces, it is probable that sequential transaction commits (each of which flush the log file to the backing filesystem), will write a block of Flash memory twice, as the last log record from the first commit will write the same block of Flash memory as the first log record from the second commit. Applications not requiring absolute durability should specify the DB_TXN_WRITE_NOSYNC or DB_TXN_NOSYNC flags to the DB_ENV->set_flags() method to avoid this overwrite of a block of Flash memory.
For more details, please check [Memory-only or Flash configurations|http://www.oracle.com/technology/documentation/berkeley-db/db/programmer_reference/program_ram.html]
Bogdan Coman

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Problem in using socket streams with encryption and decryption

Hi,
I am developing a client/server program with encryption and decryption at both end. While sending a message from client it should be encrypted and at the receiving end(server) it should be decrypted and vice versa.
But while doing so i got a problem if i use both encryption and decryption at both ends. But If i use only encryption at one (only outputstream) and decryption at other end(only inputstream) there is no problem.
Here is client/server pair of programs in which i am encrypting the outputstream of the socket in client side and decrypting the inputstream of the socket in server side.
serverSocketDemo.java
import java.io.*;
import java.net.*;
import java.security.*;
import java.security.spec.*;
import javax.crypto.*;
import javax.crypto.spec.*;
import java.util.*;
import java.util.zip.*;
class serverSocketDemo
     public static void main(String args[])
          try
          {                    //server listening on port 2000
               ServerSocket server=new ServerSocket(2000);
               while (true)
                    Socket theConnection=server.accept();
                    System.out.println("Connecting from local address : "+theConnection.getLocalAddress());
                    System.out.println("Connection request from : "+theConnection.getInetAddress());
                    //Input starts from here
                    Reader in=new InputStreamReader(getNetInStream(theConnection.getInputStream()),"ASCII");
                    StringBuffer strbuf=new StringBuffer();
                    int c;
                    while (true)
                         c=in.read();
                         if(c=='\n' || c==-1)
                              break;
                         strbuf.append((char)c);
                    String str=strbuf.toString();
                    System.out.println("Message from Client : "+str);
                    in.close();
                    theConnection.close();
          catch(BindException e)
               System.out.println("The Port is in use or u have no privilage on this port");
          catch(ConnectException e)
               System.out.println("Connection is refused at remote host because the host is busy or no process is listening on that port");
          catch(IOException e)
               System.out.println("Connection disconnected");
          catch(Exception e)
     public static BufferedInputStream getNetInStream(InputStream in) throws Exception
          // register the provider that implements the algorithm
          Provider sunJce = new com.sun.crypto.provider.SunJCE( );
          Security.addProvider(sunJce);
          // create a key
          byte[] desKeyDataDec = "This encryption can not be decrypted".getBytes();
          DESKeySpec desKeySpecDec = new DESKeySpec(desKeyDataDec);
          SecretKeyFactory keyFactoryDec = SecretKeyFactory.getInstance("DES");
          SecretKey desKeyDec = keyFactoryDec.generateSecret(desKeySpecDec);
          // use Data Encryption Standard
          Cipher desDec = Cipher.getInstance("DES");
          desDec.init(Cipher.DECRYPT_MODE, desKeyDec);
          CipherInputStream cin = new CipherInputStream(in, desDec);
          BufferedInputStream bin=new BufferedInputStream(new GZIPInputStream(cin));
          return bin;
clientSocketDemo.java
import java.io.*;
import java.net.*;
import java.security.*;
import java.security.spec.*;
import javax.crypto.*;
import javax.crypto.spec.*;
import java.util.*;
import java.util.zip.*;
class clientSocketDemo
     public static void main(String args[])
          try
               Socket theConnection=new Socket("localhost",2000);
               System.out.println("Connecting from local address : "+theConnection.getLocalAddress());
               System.out.println("Connecting to : "+theConnection.getInetAddress());
               //Output starts from here
               OutputStream out=getNetOutStream(theConnection.getOutputStream());
               out.write("Please Welcome me\n".getBytes());
               out.flush();
               out.close();
               theConnection.close();
          catch(BindException e)
               System.out.println("The Port is in use or u have no privilage on this port");
          catch(ConnectException e)
               System.out.println("Connection is refused at remote host because the host is busy or no process is listening on that port");
          catch(IOException e)
               System.out.println("Connection disconnected");
          catch(Exception e)
     public static OutputStream getNetOutStream(OutputStream out) throws Exception
          // register the provider that implements the algorithm
          Provider sunJce = new com.sun.crypto.provider.SunJCE( );
          Security.addProvider(sunJce);
          // create a key
          byte[] desKeyDataEnc = "This encryption can not be decrypted".getBytes();
          DESKeySpec desKeySpecEnc = new DESKeySpec(desKeyDataEnc);
          SecretKeyFactory keyFactoryEnc = SecretKeyFactory.getInstance("DES");
          SecretKey desKeyEnc = keyFactoryEnc.generateSecret(desKeySpecEnc);
          // use Data Encryption Standard
          Cipher desEnc = Cipher.getInstance("DES");
          desEnc.init(Cipher.ENCRYPT_MODE, desKeyEnc);
          CipherOutputStream cout = new CipherOutputStream(out, desEnc);
          OutputStream outstream=new BufferedOutputStream(new GZIPOutputStream(cout));
          return outstream;
Here is client/server pair in which i use both encrypting outpustream and decrypting inputstream at both ends.
serverSocketDemo.java
import java.io.*;
import java.net.*;
import java.security.*;
import java.security.spec.*;
import javax.crypto.*;
import javax.crypto.spec.*;
import java.util.*;
import java.util.zip.*;
class serverSocketDemo
     private Cipher desEnc,desDec;
     serverSocketDemo()
          try
               // register the provider that implements the algorithm
               Provider sunJce = new com.sun.crypto.provider.SunJCE( );
               Security.addProvider(sunJce);
               // create a key
               byte[] desKeyData = "This encryption can not be decrypted".getBytes();
               DESKeySpec desKeySpec = new DESKeySpec(desKeyData);
               SecretKeyFactory keyFactory = SecretKeyFactory.getInstance("DES");
               SecretKey desKey = keyFactory.generateSecret(desKeySpec);
               desEnc = Cipher.getInstance("DES");
               desEnc.init(Cipher.ENCRYPT_MODE, desKey);
               desDec = Cipher.getInstance("DES");
               desDec.init(Cipher.DECRYPT_MODE, desKey);
          catch (javax.crypto.NoSuchPaddingException e)
               System.out.println(e);
          catch (java.security.NoSuchAlgorithmException e)
               System.out.println(e);
          catch (java.security.InvalidKeyException e)
               System.out.println(e);
          catch(Exception e)
               System.out.println(e);
          startProcess();
     public void startProcess()
          try
               ServerSocket server=new ServerSocket(2000);
               while (true)
                    final Socket theConnection=server.accept();
                    System.out.println("Connecting from local address : "+theConnection.getLocalAddress());
                    System.out.println("Connection request from : "+theConnection.getInetAddress());
                    Thread input=new Thread()
                         public void run()
                              try
                                   //Input starts from here
                                   Reader in=new InputStreamReader(new BufferedInputStream(new CipherInputStream(theConnection.getInputStream(), desDec)),"ASCII");
                                   StringBuffer strbuf=new StringBuffer();
                                   int c;
                                   while (true)
                                        c=in.read();
                                        if(c=='\n'|| c==-1)
                                             break;
                                        strbuf.append((char)c);
                                   String str=strbuf.toString();
                                   System.out.println("Message from Client : "+str);
                              catch(Exception e)
                                   System.out.println("Error caught inside input Thread : "+e);
                    input.start();
                    Thread output=new Thread()
                         public void run()
                              try
                                   //Output starts from here
                                   OutputStream out=new BufferedOutputStream(new CipherOutputStream(theConnection.getOutputStream(), desEnc));
                                   System.out.println("it will not be printed");
                                   out.write("You are Welcome\n".getBytes());
                                   out.flush();
                              catch(Exception e)
                                   System.out.println("Error caught inside output Thread : "+e);
                    output.start();
                    try
                         output.join();
                         input.join();
                    catch(Exception e)
                    theConnection.close();
          catch(BindException e)
               System.out.println("The Port is in use or u have no privilage on this port");
          catch(ConnectException e)
               System.out.println("Connection is refused at remote host because the host is busy or no process is listening on that port");
          catch(IOException e)
               System.out.println("Connection disconnected");
          catch(Exception e)
     public static void main(String args[])
          serverSocketDemo server=new serverSocketDemo();
clientSocketDemo.java
import java.io.*;
import java.net.*;
import java.security.*;
import java.security.spec.*;
import javax.crypto.*;
import javax.crypto.spec.*;
import java.util.*;
import java.util.zip.*;
class clientSocketDemo
     private Cipher desEnc,desDec;
     clientSocketDemo()
          try
               // register the provider that implements the algorithm
               Provider sunJce = new com.sun.crypto.provider.SunJCE( );
               Security.addProvider(sunJce);
               // create a key
               byte[] desKeyData = "This encryption can not be decrypted".getBytes();
               DESKeySpec desKeySpec = new DESKeySpec(desKeyData);
               SecretKeyFactory keyFactory = SecretKeyFactory.getInstance("DES");
               SecretKey desKey = keyFactory.generateSecret(desKeySpec);
               desEnc = Cipher.getInstance("DES");
               desDec = Cipher.getInstance("DES");
               desEnc.init(Cipher.ENCRYPT_MODE, desKey);
               desDec.init(Cipher.DECRYPT_MODE, desKey);
          catch (javax.crypto.NoSuchPaddingException e)
               System.out.println(e);
          catch (java.security.NoSuchAlgorithmException e)
               System.out.println(e);
          catch (java.security.InvalidKeyException e)
               System.out.println(e);
          catch(Exception e)
               System.out.println(e);
          startProcess();
     public void startProcess()
          try
               final Socket theConnection=new Socket("localhost",2000);
               System.out.println("Connecting from local address : "+theConnection.getLocalAddress());
               System.out.println("Connecting to : "+theConnection.getInetAddress());
               Thread output=new Thread()
                    public void run()
                         try
                              //Output starts from here
                              OutputStream out=new BufferedOutputStream(new CipherOutputStream(theConnection.getOutputStream(), desEnc));
                              out.write("Please Welcome me\n".getBytes());
                              out.flush();
                         catch(Exception e)
                              System.out.println("Error caught inside output thread : "+e);
               output.start();
               Thread input=new Thread()
                    public void run()
                         try
                              //Input starts from here
                              Reader in=new InputStreamReader(new BufferedInputStream(new CipherInputStream(theConnection.getInputStream(), desDec)),"ASCII");
                              System.out.println("it will not be printed");
                              StringBuffer strbuf=new StringBuffer();
                              int c;
                              while (true)
                                   c=in.read();
                                   if(c=='\n' || c==-1)
                                        break;
                                   strbuf.append((char)c);
                              String str=strbuf.toString();
                              System.out.println("Message from Server : "+str);
                         catch(Exception e)
                              System.out.println("Error caught inside input Thread : "+e);
               input.start();
               try
                    output.join();
                    input.join();
               catch(Exception e)
               theConnection.close();
          catch(BindException e)
               System.out.println("The Port is in use or u have no privilage on this port");
          catch(ConnectException e)
               System.out.println("Connection is refused at remote host because the host is busy or no process is listening on that port");
          catch(IOException e)
               System.out.println("Connection disconnected");
          catch(Exception e)
     public static void main(String args[])
          clientSocketDemo client=new clientSocketDemo();
**** I know that the CInput tries to read some header stuff thats why i used two threads for input and output.
Waiting for the reply.
Thank you.

Do not ever post your code unless requested to. It is very annoying.
Try testing what key is being used. Just to test this out, build a copy of your program and loop the input and outputs together. Have them print the data stream onto the screen or a text file. Compare the 1st Output and the 2nd Output and the 1st Input with the 2nd Input and then do a static test of the chipher with sample data (same data which was outputted), then do another cipher test with the ciphertext created by the first test.
Everything should match - if it does not then follow the steps below.
Case 1: IO Loops do not match
Case 2: IO Loops match, but ciphertext 1st run does not match loop
Case 3: IO Loops match, 1st ciphertext 1st run matches, but 2nd run does not
Case 4: IO Loops match, both chiphertext runs do not match anything
Case 5: Ciphertext runs do not match eachother when decrypted correctly (outside of the test program)
Problems associated with the cases above:
Case 1: Private Key is changing on either side (likely the sender - output channel)
Case 2: Public Key is changing on either side (likely the sender - output channel)
Case 3: Private Key changed on receiver - input channel
Case 4: PKI failure, causing private key and public key mismatch only after a good combination was used
Case 5: Same as Case 4

Using OleDbDataAdapter Update with InsertCommands and getting blocking locks on Oracle table

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oc.Open();
for (int i = 0; i < xImageId.Count; i++)
// Create the oracle adapter using a SQL which will not return any actual rows just the structure
OleDbDataAdapter da =
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da.Fill(ds, "documents");
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foreach (string sInvoice in sInvoices)
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    ds.Tables["documents"].Rows.Add(dr);
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da.InsertCommand = new OleDbCommand(insertCommandText);
da.InsertCommand.Connection = oc;
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da.InsertCommand.Parameters.Add(":BUSINESS_UNIT", OleDbType.VarChar, 5, "BUSINESS_UNIT");
da.InsertCommand.Parameters.Add(":INVOICE", OleDbType.VarChar, 22, "INVOICE");
da.InsertCommand.Parameters.Add(":ASSIGNMENT_ID", OleDbType.VarChar, 15, "ASSIGNMENT_ID");
da.InsertCommand.Parameters.Add(":END_DT", OleDbType.Date, 0, "END_DT");
da.InsertCommand.Parameters.Add(":RI_TIMECARD_ID", OleDbType.VarChar, 10, "RI_TIMECARD_ID");
da.InsertCommand.Parameters.Add(":IMAGE_ID", OleDbType.VarChar, 8, "IMAGE_ID");
da.InsertCommand.Parameters.Add(":FILENAME", OleDbType.VarChar, 80, "FILENAME");
da.InsertCommand.Parameters.Add(":BARCODE_LABEL_ID", OleDbType.VarChar, 18, "BARCODE_LABEL_ID");
da.InsertCommand.Parameters.Add(":DIRECT_INVOICING", OleDbType.VarChar, 1, "DIRECT_INVOICING");
da.InsertCommand.Parameters.Add(":EXCLUDE_FLG", OleDbType.VarChar, 1, "EXCLUDE_FLG");
da.InsertCommand.Parameters.Add(":DTTM_CREATED", OleDbType.Date, 0, "DTTM_CREATED");
da.InsertCommand.Parameters.Add(":DTTM_MODIFIED", OleDbType.Date, 0, "DTTM_MODIFIED");
da.InsertCommand.Parameters.Add(":IMAGE_DATA", OleDbType.Binary, System.Convert.ToInt32(filedata.Length), "IMAGE_DATA");
da.InsertCommand.Parameters.Add(":PROCESS_INSTANCE", OleDbType.VarChar, 10, "PROCESS_INSTANCE");
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Here is what Oracle is showing as blocking locks and the SQL that has been identified with each of the SIDS. Not sure why there is contention. There are no triggers or joined tables in this piece of code.
Here is the SQL all of the SIDs below are running:
INSERT INTO sysadm.PS_RI_INV_PDF_MERG (SEQ_NBR, BUSINESS_UNIT, INVOICE, ASSIGNMENT_ID, END_DT, RI_TIMECARD_ID, IMAGE_ID, FILENAME, BARCODE_LABEL_ID, DIRECT_INVOICING, EXCLUDE_FLG, DTTM_CREATED, DTTM_MODIFIED, IMAGE_DATA, PROCESS_INSTANCE) VALUES (SYSADM.INV_PDF_MERG.nextval,
:BUSINESS_UNIT, :INVOICE, :ASSIGNMENT_ID, :END_DT, :RI_TIMECARD_ID, :IMAGE_ID, :FILENAME, :BARCODE_LABEL_ID, :DIRECT_INVOICING, :EXCLUDE_FLG, :DTTM_CREATED, :DTTM_MODIFIED, :IMAGE_DATA, :PROCESS_INSTANCE)
SID 1452 (BTSUSER,BIZTPRDI,BTSNTSvc64.exe) in instance FSLX1 is blocking SID 1150 (BTSUSER,BIZTPRDI,BTSNTSvc64.exe) in instance FSLX1
SID 1452 (BTSUSER,BIZTPRDI,BTSNTSvc64.exe) in instance FSLX1 is blocking SID 1452 (BTSUSER,BIZTPRDI,BTSNTSvc64.exe) in instance FSLX1
SID 1452 (BTSUSER,BIZTPRDI,BTSNTSvc64.exe) in instance FSLX1 is blocking SID 1156 (BTSUSER,biztprdi,BTSNTSvc64.exe) in instance FSLX3
SID 1452 (BTSUSER,BIZTPRDI,BTSNTSvc64.exe) in instance FSLX1 is blocking SID 6 (BTSUSER,BIZTPRDI,BTSNTSvc64.exe) in instance FSLX2
SID 1452 (BTSUSER,BIZTPRDI,BTSNTSvc64.exe) in instance FSLX1 is blocking SID 1726 (BTSUSER,BIZTPRDI,BTSNTSvc64.exe) in instance FSLX2
SID 1452 (BTSUSER,BIZTPRDI,BTSNTSvc64.exe) in instance FSLX1 is blocking SID 2016 (BTSUSER,biztprdi,BTSNTSvc64.exe) in instance FSLX2

Using Logic 9 with mixer and audio line in on Mac Book Pro.

Hello, I Just began studio recording, and am making the switch from garage band to logic 9.
I do not know how to make my instruments play through logic 9 using a mixer and a Line In connection to the mac like I could with garage band.
Please scroll down to the bold underline text for tl;dr
I am self taught, and never thought I would love working with sound, and I spent over a year touring the US doing live sound for concerts and am now helping out with live studio recordings, and projects on my own.
It started as something to do to fight boredom and to help, basically making sure nobody touched the mixer or to unplug it if things caught on fire.
By the end of the year I had been helping "Others" with live sound, and I learned a lot about the features and trims on the analog mixer that are more complex than "mixing the volume of each track" lol.
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so I will try my best to understand your help.
Anyway's, I looked up online, and I cannot figure out how to get logic 9 to playback instruments set up on my mixer.
I currently have Male L/R 1/4inch to 8th Inch cables coming from main into the Line In port on the mac.
I know this setup is called "stereo" (I think?) and Im limited with only two separate tracks to record, so I have my selected tracks panned right and left for two separate inputs on the program.
I know everything works because I had it all setup on garage band, I changed nothing for logic, but all I can find are MIDI tutorials and I am using analog to line in, not MIDI.
Please let me know what I have to do to bring up two separate tracks, and also be able to hear them wile I play before recording.

Kudos to figuring it out yourself.
Yes, Logic is geared to the professional user, you will need to set up the program to your particular way of working, Logic was well developed for professional use long before Apple purchased it, it's not an Apple program per se. It's complex and offers a myriad number of choices so that it can be configured to many styles of working, there's often 3 or 4 ways to perform the same function.
Logic insists the user educate themselves... which is a good thing.
Here ya go!
http://documentation.apple.com/en/logicpro/
"Exploring Logic Pro" is a good one to start with.
Also in the main manual... "Setting Up Your System"

How can I remove an account and apps from another user from my Ipod. My nephew used to live with me and everytime I sync my Ipod his stuff is added to mine. I have no way to contact him for his password.

I need to know how to remove an iTunes account associated with my computer. My nephew used to live with me but has moved out. Everytime I sync my iPod touch his stuff is added to my device. I have no way to contact him to get his password. How can I make this go away. He listened to music that is very offensive to me and I dont want it in my library or playlists. Any help would be greatly appreciated.
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You can use computer iTunes to help.
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You can of course, de-authorize the computer in iTunes menu Store.
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Using DB Adapter with XMLDB and CLOB

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If i try to use a table with xmltype the creation of a database adapter fails with:
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sys_nc_rowinfo$(sys.xmltype)
change teh type of the above columns to that of the closest supported type...."
Message was edited by:
HEWizard

Hi,
To get it working you have to create an AQ-table with payload type xmltype. The xmltype payload data type is available on rdbms 10g and up. If you are on 9i or lower use raw data type. Create a queue inside the AQ-table. I'm not quite sure what's the best scenario for you to the queue with data, but I would imagine that you could create a database trigger on the table you're talking about and enqueue the xml-data (payload) to the AQ-table. Thus using the AQ-table as a staging table for the ESB system.
Next, create an ESB system using an AQAdapter to dequeue the queue (like you did using a DBAdapter). The adapter can handle both single-user and multi-consumer queue's and all data types (raw, xmltype and object types).
Messages are dequeued generally within a second after you commited the transaction.
Kind regards,
H

I burnt a dvd from a file I exported from quicktime using the share with apple and pc option. It was burnt directly from the finder. The dvd works perfectly on my mac, and also runs in my windows, but the sound in my windows pc is stammered.

This is file I created in SnapzPro (which was saved as a Quicktime mov - Animation) of a Powerpoint Presentation.

Jon, how do I re-compress the Snapz data for dvd playback?
That depends on your specific work flow strategy. I normally perform the processing in two stages if editing is involved or in a single stage if I don't plan to trim, title, add a narration track, add special effects, and/or add filters to the Snapz Pro X captured screen data.
In the two-stage process you export the captured data to an intermediate low-compression, high-quality fomat. (This can be the default settings for Snaps Pro X or a more modern editing specific format like ProRes 422/Linear PCM depending on the codec components for which your system is configured and your personal editing preferences.) The Snapz Pro X intermediate file is then edited in the application of your choice and the results are re-compressed to your final target compression format.
In any case, whether you are re-compressing the data using QT 7 Pro, iMovie, GarageBand, MPEG Streamclip, Snapz Pro X, or similar third-party app that accesses the built-in OS X QT routines, the export process is essentially the same. Whether you use a "Movie to MPEG-4" or "Movie to QT Movie" export, you must export to a data rate limited, multi-pass H.264/AAC compression combination to take advantage of the "Optimize of CD/DVD" option. Specific data rate limits depend on the playback dimensions of the file you are creating, the minimum level of quality you will accept, and the playback speed of the hardware to be used. (I normally target 4X-8X settings for SD content but if you know the recipient has a higher rated optical drive and your content is HD, then you can use higher encode settings for improved quality.)
I captured the slideshow again in Snapz, and saved it as H264/AAC. Is this good enough?
If you did not specifically use the "Optimize for..." feature, then the file is automatically targeted for "Computer" playback which assumes playback is from an hard drive which has greater bandwidth/faster throughput than an optical media player. If the target display dimensions are resonably small, the the contextual nature of the H.264 video encoder may or may not be within the playback limitations of an optical drive usually depending on the encode matrix dimensions, graphic complexity of the source data, overall brightness of the scenes, and limitations you may have place on the target file—i.e., the larger the encoding dimensions, the faster the data date and the less likely the file will be compatible with optical drive playback without having to constantly interrupt playback to cache/rebuffer additional data. However, you can always tell the recipient that if this happens, he or she should simply copy the movie file from the CD/DVD to their hard drive for playback.
What now? Do I open it in Quicktime and use the "share for mac and pc", then right-click on it in the finder and "burn to disc?"
What you do next depends on how you plan to burn the file. The steps explained above allows you to create a file that is compatible with playback from an optical drive in a QT Player app but is not authored for playback from a commercial DVD Player. Your next step is to burn that file to an optical disc that can be read by your recipient's computer. I my case, I normally burn the disc using a hybrid (HFS Plus/ISO 9660) format which supports HFS Plus, ISO-9660, Rock Ridge, and Joliet with Rock Ridge file systems. How you do this is up to you. You can, for instance, use a third-party app like Toast or Dragon Burn to create a data disc; create/burn an image file with your Disk Utility app (this is a good option if you plan to burn several discs now and/or in the future); create a named "Burn" folder, drop the file to it, and press the burn button; or simply insert a blank optical media disc into you optical drive, change the default disc name to whatever you want, drop your file to the blank media's Finder window, and press the "Burn" button. (NOTE: Burn options may differ depending on the software installed on your system and/or the version of OS X under which you may be operating.)
Dont see any specs re playback from an optical disc drive? The slideshow is only 3 min long, and I want to avoid turning it into a video DVD using iDVD, iMovie etc, as the quality of the pictures and type degrades badly. Thanks for the help. Been struggling with this for weeks.
As noted above, this is an encode setting that only becomes active when you are targeting your H.264/AAC encode for multi-pass/data rate limited compression. When active, the "Optimize for..." pop-up allows you to select "computer" (targets playback from a hard drive), "CD/DVD" (targets playback from optical media), or "Streaming" (targets playback from a realtime streaming server) options. This option prevents data rate excursions from exceeding limits normally associated with each of the named types of playback. This option has nothing to do with the file system used to burn the media disc which determines which platforms/OS can read the disc and the file it contains.

Using Apple Earphones with Mic and Remote with Ipod Nano (3rd generation)

Hi, I'm just wondering if there is any way i can make the Ipod Nano(3rd generation) compatible with the Apple Earphones with Mic and Remote. I know on the box it says the earphones are only compatible with a few ipods, like the 4th generation ipod nano. But Is there any program i can download or use to allow the ipod to recognize the earphone remote and mic?
Thanks a lot.

I'm quite convinced the answer is no for that Apple mic.
I do believe recording is possible on the Nano 3G with the right attachment. But I don't think the sound comes through the headphone jack the way they do on the nano 4G and iPhone 3G/touch.
This review http://www.macworld.com/article/60004/2007/09/3gipodnano.html says it's possible, but when I look at "Belkin, Griffin Technology, and XtremeMac" I don't find much... doesn't sound like they worked very well ... the iKaraoke is compatible

Using Apple Earphones with Remote and Mic on my Macbook

Is it possible to use the remote to control volume on my macbook? I know the mic works but I can't get the remote to. Is it even possible to use the remote?

I have a unibody Macbook with OSX 10.6.1 and it works with my Apple Earphones with Remote and Mic. However, whenever I plug them in to the Macbook it takes up to 10 seconds for the volume and tracking controls to start working on the earphone remote. Also, if there is music playing in iTunes, the audio drops out for about the same amount of time. The hardware buttons on the Macbook also stop functioning during this time. The same behavior occurs when unplugging the earphones.
Basically, it seems like the Macbook is extremely slow when adding / removing the earphones as an audio control device.
Has anyone else noticed anything like this? Thanks!

Using a DBENV with DB_LOG_IN_MEMORY and DB_TXN_NOSYNC

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