Messages in this thread | | | Date | Sat, 6 Feb 1999 22:19:03 +0100 | From | Thierry Danis <> | Subject | Re: SONY or CD-ROM lying about speed? |
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On Sat, Feb 06, 1999 at 04:37:34PM +0100, Jon K Hellan wrote: > I have a SONY 32x CD-ROM CDU771. However, Linux reports it as 14 > speed. Apparently, FreeBSD does the same. >
I've seen the same. Running a 'dd' over a complete CDROM gives me a transfer rate around 2100 KB/s, which is x14. I have a CD-ROM CDU701.
> I wonder what's the cause of this. SONY could by lying, but it sounds > a little unlikely. Alternatively, the max speed the device reports may > be wrong. Or is there some "overdrive gear" which may be invoked using > black magic? > > Has anybody got ideas about this, and how to investigate? > > Jon
-- Thierry Danis
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