Archived posting to the Leica Users Group, 2007/11/21
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]It sounds like your external hard drives are formatted as DOS or FAT16 volumes. Select the external drive, do File->Get Info, and see what it says under "Format:". My external drives say "Mac OS Extended (Journaled)". If your DVD drive spits out the DVD without allowing you to do anything, that means that the drive believes it can't write on that disc. There are oodles of different formats for DVDs, and it is easy to buy discs that are in a format that older DVD drives don't know about. If you click on "About this Mac" under the Apple menu, then click on the "More info..." button, and click on the appropriate sub-item under "Hardware", it will tell you what your DVD drive can do. Exactly which one is appropriate depends on the version of the system you are using. I click on "Disc Burning" under "Hardware", and it says this: PIONEER DVD-RW DVR-112D: Firmware Revision: AC08 Interconnect: ATAPI Burn Support: Yes (Apple Shipping Drive) Cache: 2000 KB Reads DVD: Yes CD-Write: -R, -RW DVD-Write: -R, -RW, +R, +R DL, +RW Write Strategies: CD-TAO, CD-SAO, CD-Raw, DVD-DAO Media: Insert media and refresh to show available burn speeds The most primitive burnable DVD disc is a DVD-R. If your computer can handle +R, you should be using those. Stay away from -RW and +RW and (for 2007 at least) +R Double Layer. My best bet is that you are putting DVD+R discs into a drive that can only write DVD-R.