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haha , fun way to check if youtube is using ffmpeg or not :) i was going to email them, guess i'll give that a chance right now. -Compn 20:57, 4 January 2007 (EST)

You should be able to get around the file too long message by having the upgraded youtube account (called something like director). It allows you to post movies that last more than 10 minutes. According to the website, the maximum size is 100 MB.

Mentioned in the Troubleshooting:Uploads section is that Real media (.rm) and Flash (.flv) are not supported. They mention using Windows Movie Maker or iMovie, so all the formats that either one can produce should work. Dashcloud 00:04, 5 January 2007 (EST)

I thought I remembered reading forums somewhere about people transcoding to FLV and uploading to YouTube. They reported it worked, but there was generational loss since YouTube transcodes it to a new FLV anyway. I have yet to test it personally. Also, I tend to think that any length error indicated in this table is a malfunction on the part of the trancoding software since none of the files were anywhere near the file size limit nor time limit. --Multimedia Mike 00:44, 5 January 2007 (EST)
Just added RealVideo versions 1..3 to the list (they all work). If those 3 work, I wager #4 will work as soon as it has been given enough time to process. FLV/Sorenson works but not the other codecs. --Multimedia Mike 03:31, 5 January 2007 (EST)

anyone try some h264 samples? -Compn 15:35, 9 January 2007 (EST)

I haven't tried any yet. If you know of some specific samples I should try, particularly ones that flex particular H.264 properties, either try uploading them, or let me know the links so I can try them. --Multimedia Mike 18:18, 9 January 2007 (EST)
You can easily create h264 samples, and a lot of other formats using LiVES ( I'd be interested to know which of LiVES formats are supported, particularly the Free ones like theora and dirac. Salsaman 19:39, 25 January 2007 (EST)

I wonder why i can't find theora on this list (neither on supported nor on the non-supported part). Shouldn't it be listed somewhere??? Excuse me, i'm largely ignorant, so enlighten me :) --Avenger teambg 07:42, 6 April 2007 (EDT)

The list is by no means complete. It's an ongoing effort to determine which formats YouTube supports. Feel free to test Theora support yourself and update the Wiki with your results. Now that you point it out, however, I will probably handle it myself. --Multimedia Mike 20:30, 7 April 2007 (EDT)