Hi,
Up until version 6, when it started crashing supposedly because I use it to edit H.264-encoded files (*.ts or *.m2ts) it worked great with the following:
Win7 64-bit
i5 760 Lynnfield
8GB RAM
GeForce GTX 460
>200GB available on HDD for cache
I regularly edited files >8GB and it had zero problems, again, until like an idiot I updated to version 6 (including the latest 6.1.2.211) and found myself alpha testing AVS' software (yet again).
sigh
-Joe Dowd