If the file size is going to 8GB, then the video does get compressed, which means the quality is degraded. Then again if you are playing the movie on an IPAD, then the size is much more important than perfect quality and to be honest, who is going to bitch about any quality loss on a tablet screen? The smaller the screen, the less the quality matters. (Think of a streaming video in a little window on your screen vs how it looks if you blow it up to full screen. One looks fine, the other looks very blocky and pixilated) That all being said... I'd never spend 8 hours of time to convert something just so I could put it on my tablet.
You are right....I must have had a brain fart....I mean there were three reasons why this was not a good idea.... :-)
I will rip the BRs to the ipad only if I am going to travel for a long time. For me, it's all about the quality of the experience. Watching movies on the ipad is OK at best, but I'd not do it for any new movie or anything like that. And, I'm with you...8 hours for a conversion is a long time. Heck, most of the BRs that I've purchased recently come with a digital copy, so no ripping would be required.