I could use some help figuring out how to select a new CD/DVD duplicator to burn reference or access copies of audio, video and text files (legitimately, from digital content we have created). I thought this would be simple---go out and order a new duplicator (and maybe that's all there is to it---if so, feel free to say so) but I'm seeing there's a lot I don't know. So, here's what I think we want: -the ability to duplicate CD and DVD reference and access copies (of audio, video, text--i.e., bits). Duplicate one at-a-time rather than multiples---a fairly simple duplicator I'm guessing; -reliably accurate bit-for-bit duplication. Are there differences in duplicators' abilities to do this? Over time? -the ability to handle most disc formats---i.e., be as universal as possible to handle source DVDs, CDs, CDR, CDRW. Does this request make sense and, if yes, is it a reasonable request---any compromises involved here? -We mainly use PCs but would like MAC platform compatibility also. Is this possible or are we talking compromises and possibly should plan for MAC or PC dedicated burners? Questions: -Is there anything in particular to recommend purchasing a standalone vs. computer-linked duplicator? Are there standalone burners that can also link-up with a computer? -Do all duplicators write to disc the same way? If not, are there differences that make a difference? Is bit rot a factor with DVDs or CDs? If yes, is there a useful and affordable way to measure the rate of bit rot or is this foolishness? -Should we be writing to one format---i.e., DVDs?---regardless of the source format? (Revealing my lack of background but I need to learn so better to ask.) -What about lightscribe? This could be useful but could affect disc longevity. What does this do to the disc? Is it considered harmless or not or don't we know? -Are there better duplicators or manufacturers? best DVD drives for duplicators? Not sure how to ask this. -Anything additional I should be asking? I'll appreciate whatever information, advice or recommendations are offered. Tyra Grant Head, Preservation Department University of Kansas Libraries Phone: 785-864-8951