Well i have used many gamescript, and phparcadescript are the ones that i whould recomend. I have used both for a long long time, and phparcadescript is the best.
PHPAS was coded for a arcade site, i coded a mod to allow more file types, on the next release. The coder coded also a MULTI file type, now you can have everythign from DCR, SWF, JPG all the way to what you want .avi for example