fyi: i have nice plextor cd-rw drive
cdi is crap because: disc image is not the same as the disc. i've done tests on sega cd games and data in some sectors in the image does not mach the data in the same sectors on the disc. also, its a proprietary format. there has been at least 1 major revision in the format, causing version 2 images to not be usable with version 3 of dj. ya never know when they might decide to change it again.
nrg is crap because: see above about data inconsistency. also a proprietary format. i've heard there were changes in the format towards the end of the version 5 run, but i haven't confirmed. also, nero 6 apparently can't handle multisession images or something.
bin/cue is good because: all the necessary data is there, and in the right place. NOT a proprietay format, just the data and indeces. there's not much to change there. that also means any burning program that's worth a damn can make cd's from bin/cue images (exception is blindwrite, sega cd games won't boot). cdrwin and blindread do their job and do it right. alcohol creates a proper bin, but the cuesheet is wrong from track 03 on (concerning sega cd games).
clonecd is undetermined because: it's a bin/cue when you get down to it. for sega cd games, all the sub stuff is unnecessary. the problem is that last time i tested it for ripping, there was an extra frame in an odd spot. i never bothered to try again so that's not a total negative, it could be a fluke. if the ripper doesn't create a cuesheet, that's annoying. make a goddamn cuesheet so i can use cdrwin.
iso/mp3 is crap because: it's sloppy and there's quality loss. if you don't care about integrity, then it can serve it's purpose with proper encoding and all that. for everyone else, full images are necessary.
iso/wav is crap because: why bother? leave it as a bin/cue and be done with it.
as for losing cuesheets, how the hell do you do that? it's not like rippers send the bin and cue's out seperately. maybe you randomly split up file sets and place them around your hard drive, but most people don't. if you somehow manage to get a bin without a (necessary) cue, don't share it. if you have an archive with a bin and a cue, dont extract it and share the open contents. don't repack them and share the new archive either. that's just dumb.
http://segacd.org