Software to handle 100/1000 hours video? There is some project that will be 720 hours long http://www.thelongestfilm.com/ what software can handle such amount of hours in timeline? Maximum what I could find is final cut pro x - 558 Day Timeline. On Windows every major application like premiere pro or avidemux can handle only 24 hours. Any suggestions?
After reading about FCP's 1600 track, 558 day long sequence test I don't think that's the limit of the software, but the hardware: "...very large numbers of clips within FCPX will slow the machine down."  

Same is true of Adobe's Premiere - as the project grows, the performance lags. Avid Media Composer manages media differently and AFAIK, there's no limit (?) to the sequence length, but in the comments of the FCP 558days/1600track article, someone writes, "Last time I built a sequence over 13 hours, Avid stopped playing audio." Again, that might be a hardware and/or configuration issue.

Possibly Sony's Vegas would also be a contender?

Not sure about Blackmagic Design's DaVinci Resolve or EditShare's LightWorks (both free).

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After talking to some Avid editors, I think I may be wrong and that Avid doesn't like projects even 24hr long, more like a 12-18 hour limit. Not a lot of day long content getting made for broadcast I suppose!

------EDIT
Interesting - &amp; so much for what I think I know - Avid's sequence length maximum is comparatively quite limited. From a friend, "At 48KHz, about 12 hours. The limit is 2,147,483,648 audio samples. Six hours if you work at 96KHz."

------EDIT
Don't have an Avid setup to test on, but of note, I understand that if you remove audio tracks, Avid sequences can be much longer. This may hold true for other editing applications &amp; worth testing if you only need 100 or 1000 hours of just "video" and no audio.