At 5:10 PM +0100 01/23/2006, Peter Udbjørg top
posted, the "CD Burning problems" thread:
Makes me wonder if my G3 Gossamers' difficulties
in reading anyhing but pure mac OS std-cd's
could be something of the same?
Dirt is a possibility, but there are also basic UDF support issues (below).
All my other elderly macs read UDFs & MacOS ext
w/o problems. I have to use my external burner
to read my own UDFs (a disk format that my brand
new G4 powerbook cannot read either!!!), thus I
am slowly recopying the UDFs to MacOS std.
Various versions of UDF used in the market:
* V1.0.2 - Basic file system used by DVD-Video discs
* V1.5 - Support for CD-R and CD-RW drives and media
* V2.0 - Support for NT streaming
* V2.0.1 - Support for Video Recording (VOR) Files
In the classic Mac OS, Apple supported UDF 1.0.2
with their "UDF Volume Access" extension.
Adaptec enhanced this with their free "Adaptec
UDF Volume Access" extension, which fully
supports UDF 1.5. Many full burning packages
included support for UDF 2.
UDF support in Mac OS X is, well, stone age.
There is some minimal low-performance support for
UDF 1.0.2 in updated Jaguar/Panther/Tiger. Apple
has made a feeble attempt to improve UDF support
in Tiger, but it's still buggy, slow, and
embarressingly behind the PC world. There are
some not-free 3rd party packages that support UDF
1.5 and 2, but they're not very good quality
either.
Bottom line: As I was told by a guy at Apple's
genius bar last week, and again by phone support
-- for advanced UDF operations, it's best to use
a PC. "advanced" == reading all those UDF discs
that work fine in OS 9 but can't be read in OS X.
- Dan.
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