Quality aside, I'm not a great fan of the new HD movies some sites are offering for members to download. My pc usually runs at 2.5-2.7 Mbps the trouble is it's the slow upload speeds of sites offering HD.
For example....When recently as a past member of the Christina model site I attempted to download a 15 minute HD movie, my download window popped up, estimated time TWO HOURS!!!!
Sent the site a mail suggesting maybe HD might be a wrong move, they replied that most members 'are for' the new format and suggested I download overnight, while in bed.