I want to read files from CD-ROMs and DVD-ROMs using an 18F series PIC and interfacing to a DVD-ROM drive. Am I right in assuming they're both ISO9660 file systems? Does anyone have a good primer on them? (web/pdf) David... -- http://www.piclist.com hint: The list server can filter out subtopics (like ads or off topics) for you. See http://www.piclist.com/#topics