What is the best compression scheme?

Material shot on HD, downconverted to DV, edited in FCP and now I want to put in onto a DVD. About an hour of material.
What is the best compression scheme? So far testing seems to be export as 10 bit uncompressed and let DVD SP compress it but it's still not great. Lots of compression artifacts in the dark backgrounds.

Also place compression markers at those points in your presentation, where you have sudden scene changes but not because you made an edit at that point. FCP automatically places compression markers at edit points during the edit process in FCP. Then when you export out of FCP, be sure to use the DVD SP Markers export option, (Export as Quicktime Movie) this will then include any compression and chapter markers you've placed in FCP, which will be used by Compressor, during the encoding process to the .m2v file, which helps avoid artifacting on sudden scene changes.
The chapter markers will then be embeded in the .m2v file and used by DVD SP when imported. Personally, I use BitVice, (as my m2v encoder) but compressor works well as well.

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What is the best compression choice for importing audio?

Hi
What is the best setting for importing audio into itunes?
thnx

There is no "best", it depends on what is important to you.
If you want the same fidelity as the CD use AIFF, but this will result in very large files and reduce the number of songs you can put on your iPod.
If you want more songs on your iPod use 128 AAC. I wouldn't go any smaller for music.
If you want a compromise try Apple Lossless. Keep in mind if you have a Shuffle that Apple Lossless files won't work on that device.

What's the best compression setting for exporting video to DVD?

My QT self contained file from FCP is 13 GB (1:02 min long) when I use DV NTSC while exporting. When iDVD finished encoding it, it went down to 3.4 GB (that includes video files in my iDVD menus).
*Since the DVD media is 4.7 GB can I make better quality DVD by lessening compression while exporting from FCP?*
I don't think there is a way to tweak compression in iDVD. And my second question:
*Is "self contained" file better quality than just a reference file?*
*I would like to make the best possible quality DVD and am looking for some tips on what settings would help me achieve it.*

Hi Joby,
Compressor is what you need.
Import your file, choose DVD best quality 90 minutes from the settings tab (lower left window in Compressor). This will allow your movie to be converted as MPEG 2 and ac3 dolby stereo (best compression for DVD audio).
The inspector window (lower right window) will allow you to decide/arrange settings as you like.
If you are not sure about best bit rate choice use the [Bit Budget|http://www.kenstone.net/fcphomepage/bitbudget.html]
As you can see the inspector window offers a range of customizable settings if you are not familiar with those the manual (main menu>help>user manual) will answer all your questions. Simply type a word or definition in the search area and most likely the manual will provide the info you seek.
Self contained means that you create a file with exact copies from your original frames and edit on the timeline, a self-contained file becomes independent from your timeline. A reference movie as the definition says totally refers to your FCP project and wouldn't work on a different machine without referenced media files.
There is no difference in quality between the two QTmovie options.
Hope that helps
G.
PS. Extra info about Compressor and h the best way to create your DVD [here|http://www.kenstone.net/fcphomepage/fcp_homepageindex.html#dvd]

What is the best compression for HD footage for online use?

I have a sequence with the following specs:
HD (960x720) (16:9), HD 960x720 aspect ratio, DVCPRO HD 720p60 compressor and need to output a 300x250 file for an online banner.
Was wondering what you think the best looking compression would be for me to use plus whats the best way for me to keep the aspect ratio consistent within the new dimensions.
Any help would be much appreciated! thanks!

While a lot of people have Flash, not all of them have the latest version (or even the previous version). Newer versions of the Flash Player support better video codecs. I still encounter people (corporations) that are still only using Flash Player 7…

What is the best compression for HDV 1080i60 video to be played on iTunes?

Hello guys,
I would like to make an HDV video podcast for iTunes and possibly for other podcasting sites. My source format is HVD 1080i60, each episode would be about 10 minutes long. So I am wondering what format, compression and settings work best while keeping reasonable quality.
Thank you for any tip or advise.

One thing I forgot to mention: the Apple TV setting H.264 file won't play on an iPod. If you did need an iPod/iPhone compatible version, then the export setting to use would be Movie to iPod. This will make a 640x360 file. The full explanation of the differences between iPod and Apple TV formats is at http://www.apple.com/itunes/store/podcaststechspecs.html#formattingvideo

What is the best compression for youtube videos ?

I know I can go in export movie, then chosse medium for youtube, but is there a better compression because when I upload it on youtube, the quality is much lower. Should i export with QuickTime or i dunno ?
Thnx for aswering !!

What is your source material? If it is DV, then sending to YouTube in the Medium Preset is fine.
If your source is AVCHD, you could import at 1920x1080. Then after editing, share using QuickTime at 1280x720 in h.264. Then upload to YouTube through the website.

What is the best compression format for 1440 x 1080 24fps HDV?

I have a short film, around 13 minutes long, which I've recently completed. It was filmed in 1440 x 1080 24fps in HDV. What compressed video format would produce the highest quality "lossless" compression of the film? I'm planning on using the video file as my highest quality master copy –besides the FCP file itself. Thanks.

Your master should be exported as QT movie (not compression) keeping same settings and self-contained checked (No loss of quality is involved, the result is a perfect copy of each frame from your original media).
Any other conversion will involve compression then potential loss of quality.
That master will play fine on your machine but don't expect it to play on PCs.
However, you can send it to tape or take the exported self-contained file to a post house for DigiBeta or other transfer if you need screening copies of your video.
For the web H.264 is a great choice, amazing quality and fairly small file size with proper settings.
G.

The best compression algorithm to use

Hello Suners,
I have a 7 GB file and i need to compress it to be 2 GB at most in order to upload it and download it faster.
What is the best compression algorithm to use in this case? can i get the desired size and if i do how could i decompress it?

abulseed wrote:
OK,
in fact it's not just a one file it's a folder containing number of files with different types the total size of them is 7GB,
is there an algorithm can compress that folder to at most 2GB and if there one give me a link.You seem to be missing the point that it's the actual data in the files that matters for compression. A 7 GB file consisting of the words "Hello World" over and over again will compress quite significantly. A 7GB image file on the other hand will not compress hardly at all.
Take the java.util.zip package read [http://java.sun.com/developer/technicalArticles/Programming/compression/] and try for yourself with your data. If you are hoping to compress unknown data from 7Gb to 2GB the answer is that that promise is impossible to make.

What is the best lossless compression for video?

I have a large amount of captured video, which is saved in uncompressed format.
I want to archive this video and I need to figure out what the best compression choice is.
It's video only and I want the archived materials to be compressed as losslessly as possible and as small as possible. Losslessness is more important than size. The original material was captured in FCP from a video camera using Firewire. It is NTCS DV.
Multiple angles of this source material were edited in FCP and rendered to make the final, uncompressed files. Those are what I need to compress and archive.
Any suggestions would be appreciated.

There is no such thing as lossless compression.
This is not really true. There are many ways to compress - just google "compression algorithms" and you'll find some. Two basic schemes are either lossless or lossy. Lossless seeks to remove redundant or repetitive information, this is like Run Length Encoding or LZW encoding. Lossy throws away information that is generally "not perceived". JPEG, MPEG, H.264, DV are examples of lossy compression.
YUV "lossless" is 4:2:2 and is considered uncompressed, yet it takes up less space than RGB 4:4:4 encoding. Simply zipping the file compresses it (uncompressed codecs squeeze better, but DV does compress, indicating redundant information) - a TIFF sequence might have run length encoding or LZW. Both are lossless.
To get back to the question, Patrick:Losslessness is more important than size.
H.264 is a fantastic compression - it is, however, FAR from lossless AND it is not directly editable. You'd need to convert it back to an editable format, ensuring even more loss. Not within the parameters of your desired solution...
Patrick

What is the best way to encode and compress?

I just finished an hour and a half long video of comedians performing. The client wants this to be put on dvd so he can mass produce it. What is the best way to compress this and encode it? Should I buy compressor or can I do it in handbrake? What are the best best settings to make sure it doesnt lose quality? Please advise...

You should be able to get up to 2 hours at least.
The best way is to export as a Master File and drop it into iDVD, Toast or some other DVD authoring app.

What is the best methodology to handle database schema changes after an application has been deployed?

Hi,
VS2013, SQL Server 2012 Express LocalDB, EF 6.0, VB, desktop application with an end user database
What is a reliable method to follow when there is a schema change for an end user database used by a deployed application? In other words, each end user has their own private data, but the database needs to be expanded for additional features, etc.
I list here the steps it seems I must consider. If I've missed any, please also inform:
(1) From the first time the application is installed, it should have already moved all downloaded database files to a separate known location, most likely some sub-folder in <user>\App Data.
(2) When there's a schema change, the new database file(s) must also be moved into the location in item (1) above.
(3) The application must check to see if the new database file(s) have been loaded, and if not, transfer the data from the old database file(s) to the new database file(s).
(4) Then the application can operate using the new schema.
This may seem basic, but for those of us who haven't done it, it seems pretty complicated. Item (3) seems to be the operative issue for database schema changes. Existing user data needs to be preserved, but using the new schema. I'd like
to understand the various ways it can be done, if there are specific tools created to handle this process, and which method is considered best practice.
(1) Should we handle the transfer in a 'one-time use' application method, i.e. do it in application code.
(2) Should we handle the transfer using some type of 'one-time use' SQL query. If this is the best way, can you provide some guidance if there are different alternatives for how to perform this in SQL, and where to learn/see examples?
(3) Some other method?
Thanks.
Best Regards,
Alan

Hi Uri,
Thank you kindly for your response. Also thanks to Kalman Toth for showing the right forum for such questions.
To clarify the scenario, I did not mean to imply the end user 'owns' the schema. I was trying to communicate that in my scenario, an end user will have loaded their own private data into the database file originally delivered with the application.
If the schema needs to be updated for new application features, the end user's data will of course need to be preserved during the application upgrade if that upgrade includes a database schema change.
Although I listed step 3 as transferring the data, I should have made more clear I was trying to express my limited understanding of how this process "might work", since at the present time I am not an expert with this. I suspected my thinking
is limited and someone would correct me.
This is basically the reason for my post; I am hoping an expert can point me to what I need to learn about to handle database schema changes when application upgrades are deployed. For example, if an SQL script needs to be created and deployed
then I need to learn how to do that. What's the best practice, or most reliable/efficient way to make sure the end user's database is changed to the new schema after the upgraded application is deployed? Correct me if I'm wrong on this,
but updating the end user database will have to be handled totally within the deployment tool or the upgraded application when it first starts up.
If it makes a difference, I'll be deploying application upgrades initially using Click Once from Visual Studio, and eventually I may also use Windows Installer or Wix.
Again, thanks for your help.
Best Regards,
Alan

What is the best way of compressing a large 3 hour final cut file

What is the best way of compressing a large 3 hour final cut file. I shot the play and it is in final cut and I rndered it so now I have a 22gb file that I need to put on a dvd . Any suggestions
Thanks
Macbook Pro
2.3 GHz Intel Core i7
with Final Cut Pro 7.0.3
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Presuming your menus aren't complicated(include audio or video) the total size for the MPG-2 and AC3 files should probably be under 8GB for a dual layer disk. The inspector will tell you the estimated size. 2-pass varible bit rate would be recommended.
Trying to fit 3 hours on a DVD-5 will only bring very noticable quality hits. Compressor will let you change the average bit rate so that you can fit 174 minutes but trade-off isn't worth it in my opinion.
Be aware that dual-layer -R and +R media may not play well for everyone everywhere.
I presume you are not making 1000 or more copies? If you were replication could solve this.
One other alternative would be to break-up the show into two parts and spread it across two DVD-5s.

What is the best way to compress a song?

What is the best way to compress a song to bring it into IMOVIE?

I assume you are referring to compressing the file size of the resultant song, rather than compressing the audio dynamic range of the tracks in the song.
GarageBand only outputs .AIFF files which are uncompressed 16-bit, 44.1KHz stereo audio.
As far as I know, there is no point in compressing the GarageBand song before importing it into iMovie, because iMovie uses the same format for audio internally as GarageBand does.
You can open a GarageBand song in iTunes and use iTunes to convert it to an MP3, but when you import that MP3 into iMovie it's going to up-sample the MP3 back into AIFF format anyway.

What is the best way to create a database schema from XML

What is the best way to create a database schema from XML?
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Taking my C# further

Hi Saythj,
When mentioning "a database schema from XML", do you mean the
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Create an XML Schema Collection basing on your complex XML, you can find
many generating tools online to do that.
Create a Table with the above created schema typed XML column as below.
CREATE TABLE youTable( Col1 int, Col2 xml (yourXMLSchemaCollection))
Load your XML files and try to insert the xml content into the table above from C# or some other approaches. The XMLs that can't pass the validation fail inserting into that table.
If you have any question, feel free to let me know.
Eric Zhang
TechNet Community Support

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What is the best compression scheme?

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