The amvapp is over 2 years old by now I think. MANY versions of UTVideo have been released*, the latest versions don't even have separate x86 and x64 installers!http://umezawa.dyndns.info/archive/utvi ... .0-win.exe
Also, to play it safe, from the readme
If version 10.2.0 or older is installed, you have to uninstall that version before you install this version.
If VCM codec is not registered properly, merge utvideo.reg in install destination with registry as a last resort. This file assumes Windows directory is C:\Windows.
As the AMVApp has version UTvideo 8.2.0, you do need to uninstall it first.
Second question: Premiere CS4 is 32bit, so it won't be able to read the 64bit version, but as I said, there isn't the split installer anymore to begin with.
Third: you should use 32bit VirtualDub! In order to have 64bit VDub read .avs scripts properly, you need 64bit AVISynth, which at the current state of things is as bad of an idea as MT AVISynth
, except it also suffers from a lack of filters compared to 32bit AVISynth ─ 64bit AVS has no ResampleHQ
, even (but lacks others as well)! As far as MT goes, though, some filters have internal multithreading done safely, and they will work with vanilla avisynth, so you'll be able to enjoy the MT boost with those without any unstable avisynth build to begin with. Had to point all this out to INB4 EvaFan.
Fourth: one really would more care about the opposite. As in, you really should use 32bit avs+vdub. But if you use CS5+ instead of CS4, Premiere will be 64bit, and there is no difference in the ut video file itself, so you'll be able to encode it with the 32bit encoder from vdub, and decode it with the 64bit decoder from premiere. But if you have CS4, just stick to everything 32bit.
*And not just UTVideo; the AMVApp and AVTECH need a major updating by now.