At 10:32 PM +0200 3/25/2012, Anders Fager / Gottick wrote:
But
this <http://www.netcomdirect.com/pamauj8xdula.html>http://www.netcomdirect.com/pamauj8xdula.html
says the thing can "Write up to 8.5GB onto a single side of
dual-layer DVD media".
What am I not undertanding?
Not sure what you're quoting.
That page says:
"The additional storage capacity of the DVD+R Double Layer disc
enables you to record up to 4 hours of DVD-quality video or 16 hours
of VHS-quality video, without the need to turn over the disc. You can
now archive up to 8.5 Gbytes of computer files on a single disc,
which almost doubles the storage capacity compared with the 4.7Gbytes
for the single-layer DVD-recordable discs currently available."
There is a difference between double *layer* and double *sided*. The
former is a single-sided disc that support two layers of data. The
burner changes the frequency of the laser, to reach the other layer.
The latter is a single layer disc that has writable substrait on both
sides - so it must be turned over to reach the other 4 gigs.
- Dan.
--
- Psychoceramic Emeritus; South Jersey, USA, Earth.
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