Previously I was using Daemon. It works well, but I haven't mounted anything recent with it. I got away from mounting images on my PC, and haven't really had an application reason to mount them lately. I'm looking into making an HTPC and wanted to digitize my Bluray/DVD collection. The emulation that Gamex offers is a nice bonus, which I didn't even think of when using an HTPC. I'd much rather grab a single front-end than have to swap to multiples to accomplish a few tasks. Here's my list of desirables as it stands currently: 1) DVD ISO playback 2) Bluray ISO playback 3) Emulator functionality 4) "lossless" playback - important for me 5) high-end sound playback 6) Ability to password lock movies based on rating. #4 is really the reason I prefer ISO mounting for DVD images. It's easy enough to rip a disc and output AVI or MK formats, but you always end up with some loss, or menu navigation loss, or something.