Re: DKIOCCDREADTOC returning BCD numbers?

Subject: Re: DKIOCCDREADTOC returning BCD numbers?

From: Chris Sarcone <email@hidden>

Date: Fri, 4 Jan 2008 17:18:42 -0800

Delivered-to: email@hidden

Stephen --

The only drives I'm aware of that do this are non-compliant Plextor drives and very old Apple SCSI CD-ROM drives (nicknamed "Hollywood" drives).

-- Chris

On Jan 4, 2008, at 5:14 PM, Stephen F. Booth wrote:

Hi Chris and Dave,

Thanks for the responses!

Have you tried setting the MSF bit to 1 by setting cd_read_toc.formatAsTime = 1?

if you set formatAsTime to 1, you get an error 5 (dsChkErr), so that's clearly not an option

I haven't had a chance to push out a debug build to the user experiencing the problem, so I'm not sure if this will help for him or not. If it makes a difference I will follow up to the list.

i work around it by doing my darndest to detect BCD and correct it before i return from my call.

if i can't prove i've detected it, then i fall back on reading the ".TOC.plist" file, which sucks IMHO

if you need help or want code let me know

Have you been able to deduce any rhyme or reason to drives exhibiting this behavior? Of the two users reporting the problem to me, one was using a Plextor PX-712A inside an external enclosure (AMS VENUS DS-2512B2BK) and one was using a Plextor Premium.

FWIW, one of the users who reported this said he updated his drive's firmware (using a PC) and the problem went away.

Stephen

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References:
	>DKIOCCDREADTOC returning BCD numbers? (From: "Stephen F. Booth" <email@hidden>)
	>Re: DKIOCCDREADTOC returning BCD numbers? (From: Chris Sarcone <email@hidden>)
	>Re: DKIOCCDREADTOC returning BCD numbers? (From: "David M. Cotter" <email@hidden>)
	>Re: DKIOCCDREADTOC returning BCD numbers? (From: "Stephen F. Booth" <email@hidden>)