For about a week and a half I'm going to have access to a couple of XP machines that will be idle and I'd like to put them to work. I have a bunch of MKV HD flicks that I'd like to convert to ATV m4v (or mp4). Right now what I'm using on my Mac is Handbrake on the ATV setting (then pushing the size back to full 720p), which play just fine on my ATV. So, what should I look for to put on these PCs that'll do the same job? I guess I could just use Quicktime (assuming I can get the plugs in that will show the files to begin with), but that seems to be a bit slow, and it's a bit hard to queue the jobs. Granted I could search around on Google, but I thought I'd go for experienced answers here.