Hi, me: > > Unformatted DVD-RW need to be blanked before re-usal: > > dvd+rw-format -blank=full /dev/hdc Joerg Schilling: > This is nonsense! > Unformatted DVD-RW media may be used without special preparations.
Unused unformatted media: yes. But my statement was about re-usal after previous use for writing. Unformatted DVD-RW written by growisofs or by cdrskin may be left appendable or may be closed. cdrecord always closes them. cdrecord will not write to closed or to appendable DVD-RW. (At least it did not when i tried it in January 2007 with the then current version.) But it will blank them and then be ready to re-use. Joerg: > Formatting puts them into the one of two possible packet writing modes. > This specific mode: random accessible packet writing is typically > les reliable. It changes media profile from 14h to 13h and enables feature 2Ch "Rigid Restricted Overwrite", where the rigid restriction is that both write address and write amount have to be aligned to 32 KiB. Such a drive is allowed to _not_ implement read-modify-write emulation of non-aligned data. (MMC-5, 5.3.22) As profile 14h a DVD-RW can either write DAO (with pre-announced size) or Incremental Streaming (with open-end size). Both write types work only sequentially and not as random access. Inremental Streaming allows to keep the media appendable and to write further sessions to it. Afaik, cdrecord only supports DAO currently. growisofs supports both write types of profile 14h and the write type of profile 13h. So does cdrskin. me: > > growisofs promises to do BD-RE. Joerg: > cdrecord does too! Does it allow piping of a compressed (s)tar archive on-the-fly ? With no size prediction ? I could not test that with growisofs and BD-RE. But if it is possible with the media at all (and they look like that in the specs), then i expect that growisofs will allow this piping. Actually the features of profile 43h BD-RE make hope that it is well suited to be supported as block device by the operating system. Just like with DVD-RAM. Have a nice day :) Thomas -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]
