on my PS3? I have two exercise DVD's that I use every day, and it gets annoying having to switch them around. I'd love it if I could just stick them both in the video menu and switch them with the control, rather than risking getting sweat in the disk drive.
To copy video off DVD and make them playable on PS3, i think you can try imacsoft dvd ripping software.
http://www.imacsoft.com/free-dvd-ripper.html
iMacsoft Free dvd ripper can rip movie DVD into video or audio clips with iMacsoft Free DVD Ripper. It is so professional and powerful DVD Ripping software and which can easily rip DVDs. Get Free one and you can watch DVD movie on portable devices, such as iPad, iPhone, iPod, Apple TV, PSP, PS3, Xbox 360, Pocket PC, PDA, BlackBerry, etc.
You could use DVDFab DVD Ripper. It can rip DVD to video/audio in the format like AVI, MP4, WMV, MKV, FLV, 3GP, MP3, WAV, M4A, WMA, AC3, DTS etc. for playback on popular portable devices like iPad (iPad 2), iPhone (iPhone 4), iPod, smart phone, PSP, Zune, NDS,PS3 etc