Converting MIDI files - Unknown Error (-50)

I have been converting MIDI files into MP3 and AAC formats with iTunes without any problems for almost a year. Suddenly, after the latest upgrage, iTunes will no longer perform this function and instead reads "An error occured while converting the file "". An unknown error occured (-50)"
How can I fix this problem?

I have some purchased songs which will no longer play. I have tryed deauthenticate computer then authenticate comput. upgrade to v9.0.3 if itunes. have tried deleting the hidden folder/files under all users etc..None of these actions have workedamd despite several attempts to get some more suggestions via support, just keep being given the same information. What else can I try please? Notice a few people are getting similar issues lately is there a general problem?

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'Error occured while converting the file--unknown error occured 0x77686174

I just got my first iPod but I'm a little frustrated. I put in a cd, iTunes opens and asks me if I want to import the songs, I reply yes. When it tries the very first song of the cd, it immediately comes up with 'Error occured while converting the file "name of song". An unknown error occured (0x77686174).' It doesn't matter if this is a completely new cd or an older one.
I ran CD diagnostics on iTunes and my results are below. I have posted this several times on many different boards and haven't found any solutions or been given any solutions from anyone. I have an iPod that I can't use because I can't download any songs...does anyone have any idea what to do?
I've looked at Dell to update drivers for my cd drive but it says that I have the newest drivers...the computer isn't even a year old yet. What do I do?? I've wiped the cd like several posts say to do, I've clicked the fix error option on cd off and on like several posts have said to do, I've changed the conversion of 128 to 64 like several posts have said to do...help please, anyone?
Microsoft Windows XP Home Edition Service Pack 2 (Build 2600)
Dell Inc. Dell DM051
iTunes 7.3.1.3
CD Driver 2.0.6.1
CD Driver DLL 2.0.6.2
LowerFilters: PxHelp20 (2.0.0.0), DRVMCDB (1.0.0.1), DLACDBHM (1.0.0.1),
UpperFilters: GEARAspiWDM (2.0.6.1),
Current user is an administrator.
Video Display Information:
RADEON X300 SE 128MB HyperMemory
RADEON X300 SE 128MB HyperMemory Secondary
Connected Device Information:
Disk drive, ST3160812AS, Bus Type ATA, Bus Address [0,0]
Disk drive, TEAC USB HS-CF Card USB Device, Bus Type USB
Disk drive, TEAC USB HS-MS Card USB Device, Bus Type USB
Disk drive, TEAC USB HS-SD Card USB Device, Bus Type USB
Disk drive, TEAC USB HS-xD/SM USB Device, Bus Type USB
CD-ROM Drive, TSSTcorp CDRWDVD TS-H492C, Bus Type ATA, Bus Address [0,0]
If you have multiple drives on the same IDE or SCSI bus, these drives may interfere with each other.
Some computers need an update to the ATA or IDE bus driver, or Intel chipset. If iTunes has problems recognizing CDs or hanging or crashing while importing or burning CDs, check the support site for the manufacturer of your computer or motherboard.
D: TSSTcorp CDRWDVD TS-H492C, Rev DE02
Audio CD in drive.
Found 12 songs on CD, playing time 54:35 on Audio CD.
Track 1, start time 00:02:00
Track 2, start time 03:30:32
Track 3, start time 09:38:25
Track 4, start time 14:58:53
Track 5, start time 18:01:08
Track 6, start time 21:24:57
Track 7, start time 26:37:43
Track 8, start time 32:16:51
Track 9, start time 36:17:54
Track 10, start time 41:57:36
Track 11, start time 46:21:38
Track 12, start time 51:48:24
Audio CD reading succeeded.
Get drive speed succeeded.
The drive CDR speeds are: 48.
The drive CDRW speeds are: 48.

I came across your error code in iLounge, this post might help you out: http://forums.ipodlounge.com/showthread.php?threadid=30496

Unknown error -50 converting midi file

I'm trying to convert some midi files I made to mp3's so I can burn them to a disk. When I select "convert to mp3" from the Advanced menu I get an "unknown error (-50)" message. I've tried this on my iMac and on a Win2K laptop with the same results. I've successfully converted midi files in the past, so I'm not sure what's wrong now. I have iTunes 6 on both machines. My iMac is running the latest update of Mac OSX version 3. Any ideas what this error code means, or how to get around it?

Nope. For example the album where tracks 11 & 12 wouldn't convert: track 11 is titled "The End Has No End". All other details (artist, album, genre, artwork, etc) are identical to tracks 1-12 & track 13. Yet track 11 wouldn't convert, throwing up the error message when the progress bar was about 25% of the way up, but tracks 1-10 and track 13 convert fine
Which leads me to another point that makes me think it can't be what you suggested - namely that track 11 fails about 25% of the way up the progress bar, yet track 12 fails AS SOON as I choose "Convert to AAC". If the problem was related to file name characters or whatever you'd expect both of them to fail at the same point, presuming iTunes writes name/tag information at the same point for every file (start or end I'd presume).
Thanks anyway. Anyone else got any ideas?

I can't Convert midi files into any other format

A few months ago, I was able to convert midi files into mp3 when one day, I updated iTunes using software update. Ever since the updates I had for my Mac it still hasn't work.
It has this error that won't allow me to convert. I talked to my friend wrldwzrd89 who is one of my friends and he said that it is because Apple had a piece of data missing allowing midis to be converted to mp3, or any other format.
Is this true or do you know the solution?

I can't tell you the exact reason why it doesn't work, but there is an article about this problem and a solution if you have QuickTime Pro:
iTunes: MIDI files cannot be converted in iTunes 6.0.3 and 6.0.4
Not the last sentence in the article. That usually means they're working on a fix.
No guarantee that it will be fixed in the next version however. We'll have to wait and see.
Hope this helps.
M
17' iMac fp 800 MHz 768 MB RAM Mac OS X (10.4.6) Several ext. HD (backup and data)

Converting midi files to wav format for burning CD

I've searched for a good mac application that will allow me to convert midi files (saved from my clavinova 170) to a floppy, to wav format so that I can burn a standard audio CD. Can someone help me out?
Brent
powerbook g4 Mac OS X (10.4.3)

This is a bit complicated, conceptually.
You see, MIDI files do not contain sound or audio.
MIDI files are kind of like sheet music. They contain instructions that a synthesizer or sampler can use to play music. But MIDI files don't contain the sound itself.
Open up a blank GarageBand document, and drag your MIDI file into the window. GarageBand will attempt to select sounds for all the musical instrument tracks in your MIDI file. You can then save the file, do any necessary editing, and export the GarageBand file as an AIFF file, which you can transfer to iTunes for burning to a CD.

File unknown error

Super frustrated here. Have a simple homeade 30 minute dvd I am trying to get into fcp. I used handbrake to bring it in as mp4. Have tried to use quicktime pro to convert it to .mov file, but keeps giving error message on trying to import, the message is 1 file recognized, 0 acces denied and 1 file unknown. What the heck am I doing wrong? Much appreciate any help.

What the heck am I doing wrong?
You are using applications that generate the wrong formats.
Convert the VOB files using MPEG Streamclip (free) or DVDxDV (~$25) to an editable format such as DV.
While DVDxDV costs, it is a simple app that does what needs to be done elegantly and with little drama. MPEG Streamclip is way too fussy for what I need it to do.
x

Converting MIDI files

I get an error when I try to put MIDI files on my Ipod or convert them to AAC or mp3. Any word on when this bug will be fixed?

I don't have Midi files, but recently have read some topics about them.
The conversion seems to have gone 'broken' since the iTunes 6.0.2 update.
The last post (from user Indy33) in this topic suggests you have to go back to 6.0.1.
It doesn't seem to be fixed in 6.0.3, don't know about 6.0.4
Hope this helps.
M
17' iMac fp 800 MHz 768 MB RAM Mac OS X (10.3.9) Several ext. HD (backup and data)

Windows App developer account and .aetx file, Unknown error while generating AET

Hi Everyone,
firstly, sorry for my not perfect english, but I hope that somehow understand what i want to say.
So, I am a student (I do not know if it makes a difference but inform you), and I wanted to write a universal windows app for company (This would be the first application WP and Windows this company, previously did app on Android and IOS, and websites).
I wrote a little bit and I wanted to throw the first version on hockeyapp.net to the head of the company and the customers can test it and i have problem. I upload .appx file bu i have problem with generate .aetx file. When I run this command AETGenerator.exe
PFXFilepath PFXFilePassword it gives me an error in command prompt
Unknown error while generating AET
startIndex cannot be larger than length of string.
Parameter name: startIndex
I've read about these certificates but did not find a specific answer (a very specific answer). So what I need to do, What do I need, what to buy and etc.
What are my solutions?
What should I do?
Is it enough that I register and I buy individual developer account?
I hope someone answer me,
thank you :)

Try sending it to store anyway… I have the similar issue, the kit hangs when saving result and never complete it.
Another member has same question.
https://social.technet.microsoft.com/Forums/en-US/11910167-75e1-47d8-a0fb-fb8046c57f89/windows-app-certification-kit-31-reports-failure-due-to-crash-or-hang?forum=projectsiena.
If you want to test your app, you can also send to beta store and you can get response from the testers.

Can't convert midi files in new update.

iTunes 6.0.2
I downloaded the latest versions for Mac & PC and on both systems I am now NOT able to convert my midi files to any audio format (mp3 etc) - I could do this on all other versions.
Any ideas?

I also have this problem. Any solutions?

Export-mailbox to PST file: unknown error in approving object

Hi
I'm trying to validate export/import of PST files with Ex2K7 SP1.
I have this error during export-mailbox, and didn't find anything about it on the Net:
[PS] C:\Documents and Settings\Administrator>Export-Mailbox user01 -PSTFol
derPath C:\temp\
Confirm
Are you sure you want to perform this action?
Exporting mailbox content from the mailbox 'user01' into .pst file
'C:\temp\user01.pst'. This operation may take a long time to complete.
Yes Yes to All No [L] No to All Suspend [?] Help
(default is "Y"):
Export-Mailbox : Error was found for user01 ([email protected]
) because: Error occurred in the step: Approving object. An unknown error has o
ccurred., error code: -2147221241
At line:1 char:15
+ Export-Mailbox <<<< user01 -PSTFolderPath C:\temp\
I'm doing test on one virtual machine hosting AD (win2K3SP2 En), Ex2k7SP1 En, Outlook 2007 Fr.
Could it come from the Outlook or user mailbox language ?
The mailbox have been "initiated", I opened it with OWA, select French language, self sent message. I also opened it with Outlook 2007 on the server.
Thanks.

Hello,
Details u needed.
SUMMARY
The Fixmapi.exe tool is included with Internet Explorer 5 & above to detect and aid in resolving conflicts with Messaging Application Programming Interface (MAPI) files that may affect your ability to send and receive mail and faxes from other programs.
FixMAPI ( What Exactly it does ?).....
Makes a backup copy of the current copy of mapi32.dll on the client computer, and restores mapi32.dll with the MAPI stub library, mapistub.dll.
Quick Info
Exported by:
mapistub.dll
Called by:
Client
Implemented by:
Windows
DWORD STDAPICALLTYPE FixMAPI(void);
Return Values
If the function succeeds, the return value is a non-zero value.
If the function fails, the return value is zero. To get extended error information, call the Microsoft Platform Software Development Kit (SDK) function, GetLastError.
Remarks
FixMAPI does not replace the current mapi32.dll file if the file is marked as read-only.
FixMAPI does not replace the current mapi32.dll if Microsoft Exchange Server is installed on the computer.
When FixMAPI makes a backup copy of the current copy of mapi32.dll on the computer, it assigns the backup copy a name different from "mapi32.dll". It then directs subsequent calls intended for that assembly to the backup copy
URL - > for u r more info. http://support.microsoft.com/kb/228457

Cant save files unknown error box

I just loaded the cs3 illustrator trial version today, everything was going fine,but not for some reason it wont let me save anywork that i do on it.it comes up unknown error after the illustrator options box comes up.ive searched and havent found anything else on here about it.thanks for any help

Searched, really? This time search for "unknown error". There are plenty of threads related to this problem. Also search for "Zune", also a known problem for "unknown error".
The short answer is reset (delete) your preferences. This is in the FAQs here:
http://www.adobeforums.com/webx/.eed5198.2cd0b46e
My own personal short answer is don't install the 13.01 or 13.0.2 updates, and can be found here:
http://www.adobeforums.com/webx/.59b56469/0

I'm looking for a program to convert midi files to sheet music on a Mac

Hi, I looking for a program like 'Notation Composer' or 'Midillustrator' (Windows based) that works on my MacBook Pro. My computer skills are limited so I don't want anything to complex. I have been using Notation Composer for a couple of years on a Windows based desktop and thought I would put my files on a MacBook Pro and to my amazement it won't work on macbook. I'm not prepared to change my computer, so I'm looking at other options. Cheers stweever

Google search came up with Harmony Assistant. Their are others. You should also search MacUpdate and CNET Mac Downloads. Only you can tell which software is too complex or not.

ITunes no longer recognizes midi files how can I play and convert them?

iTunes 10.3 recognised midi files, I could "move" them to the iTunes library and select them. then click on "Advanced" and "Convert to AAC" (or to MP3 etc).
iTunes 10.5 will not recognise midi files.
I think an older version of GarageBand could also read and convert midi files, but this no longer appears to be the case either in the latest version.
How can I now convet midi files? Has Apple decided to simply ignore them?

Thanks to Limnos, I now have some further things to try, but in the meantime I found I had been maligning GarageBand 11. Indeed its built-in Help system doesn't seem to mention Midi files at all, but I found out how to insert them from Apple's on-line support system at http://support.apple.com/kb/PH2009 and it works superbly well - one can even change the instruments on individual channels etc and then save the lot as an AAC (m4a) or mp3 etc file.
I also loaded up an old version of iTunes, version 10.3, which still recognises Midi files and can convert them to AAC or mp3 but in so doing some volume seems to be lost.
But the winner so far for me has been Audacity, free software. One needs to add a LAME encoder for mp3 output, I installed Soundflower and routed the playback of the midi file available in the Finder (in fact for the whole machine, while playing the midi file) and declared Soundflower as the input for Audacity. I could then use Audacity's effects menu to increase the volume throughout the track and save it. I then, using the Sound preferences of the machine, switched back to the inbuilt speakers and was able to listen to a higher volume version, playable in iTunes 10.5. More faithful to the original midi file than the GarageBand version.
See instructions at http://ask.brothersoft.com/tags/convert-midi-to-mp3/ and in particular one of the links http://ask.brothersoft.com/how-to-convert-a-midi-to-a-mp3-using-audacity-26125.h tml
This is for Windows but for Mac it's very similar/ - still Audacity. BUT the instructions in the last link don't seem to quite work, which is why I had to use Soundflower. I can import the midi file, I can select it, but then the export item on the file menu remains greyed out and unuseable, so I must presumably be missing some plug-in. Also Audacity keeps telling me it can't find various ffmpeg files even though I thought I had installed them correctly. I'm obviously missing something here, but at least I can now get my midi files into aac or mp3 format again at last.
For Soundflower see http://cycling74.com/soundflower-landing-page/ and http://kineme.net/forum/General/soundflowerforlion
and there is a useful tutorial by Nowjobless on YouTube at
http://www.youtube.com/watch?v=r3FGOIW08gA&feature=related
Good luck to anyone else facing the same problems, it remains to be seen how to "convert" midi files to mp3 in Audacity without recourse to Soundflower.

An unknown error has occured - opening file

Hi, I'm trying to open a few different AI files that I created and saved a few days ago. They are both giving me an "an uknown error has occurred" message and won't let me open them. I've tried restarting and updating illustrator. Any ideas what is wrong? Thanks.

cskdr,
It the issue is limited to specific files:
One thing often tried first is to create a new document and File>Place the corrupted one to see how much may be rescued that way (remember to tick Paste remembers Layers in the Layer palette flyout/dropdown first, and to untick it afterwards).
Here are some websites where you can see whether it can rescue the file, and if it can, you may pay for a subscription to have it done,
http://www.recoverytoolbox.com/buy_illustrator.html
http://markzware.com/adobe-software/fix-illustrator-file-unknown-error-occurred-pdf2dtp-fi le-recovery/
http://www.illustrator.fixtoolbox.com/
As far as I remember, the first one is for Win and the one is for Mac, while the third one should be for both.
Here are a few pages about struggling with it yourself:
http://daxxter.wordpress.com/2009/04/16/how-to-recover-a-corrupted-illustrator-ai-file/
http://helpx.adobe.com/illustrator/kb/troubleshoot-damaged-illustrator-files.html
http://kb2.adobe.com/cps/500/cpsid_50032.html
http://kb2.adobe.com/cps/500/cpsid_50031.html
http://helpx.adobe.com/illustrator/kb/enable-content-recovery-mode-illustrator.html
If the issue applies to all files:
The following is a general list of things you may try when the issue is not in a specific file (you may have tried/done some of them already); 1) and 2) are the easy ones for temporary strangenesses, and 3) and 4) are specifically aimed at possibly corrupt preferences); 5) is a list in itself, and 6) is the last resort.
If possible/applicable, you should save curent artwork first, of course.
1) Close down Illy and open again;
2) Restart the computer (you may do that up to at least 5 times);
3) Close down Illy and press Ctrl+Alt+Shift/Cmd+Option+Shift during startup (easy but irreversible);
4) Move the folder (follow the link with that name) with Illy closed (more tedious but also more thorough and reversible);
5) Look through and try out the relevant among the Other options (follow the link with that name, Item 7) is a list of usual suspects among other applications that may disturb and confuse Illy, Item 15) applies to CC, CS6, and maybe CS5);
Even more seriously, you may:
6) Uninstall, run the Cleaner Tool (if you have CS3/CS4/CS5/CS6/CC), and reinstall.
http://www.adobe.com/support/contact/cscleanertool.html

Itunes/ Playlists backup/ Cannot import xml file./error message (50)

Hello there,
My itunes crashed so I'm trying to reinstall it. I do have a huge library, (>50K tracks) and have manual backups, but cannot using the library auto save since it would mean more than 100 dvd .
I copied all music files to external hard drive. I've exported my library to get the xml file to backup all my playlists.
I've reinstalled Itunes.
I've added folder to the library to get all my tracks and it worked.
Surprinsingly, all my playlists appear in Itunes, but they are all empty.
I've used import list function to get the xml file and playlists but get constantly this message :
"il est impossible d'importer le fichier bibliotheque itunes
une erreur inconnue s'est produite (-50)"
Impossible to import the itunes library file, unknown error appeared (50)
I've tried with older xml files (maybe 5 or 6 old ones) and it's always the same. What are the solutions to get my playlists back ?
I guess the problem would probably come from itunes version conflict (between 8 9 or 10). Should I try to get an old version of Itunes, compatible with my xml file ?
Is there a way to convert my xml file in another format so that Itunes can read it ?
This is the only huge weakness of this amazing software.
Thanks.

This bug did in fact appear for many of us when we upgraded to iTunes 7.3.
Here 's a lengthy thread that discusses some possible solutions.
For what it's worth, I uninstalled 7.3 and rolled back to an earlier version of iTunes.

Converting MIDI files - Unknown Error (-50)

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