Ripper strategy concerning false C2 errors?

[JetA1]

I seem to be having some problems with my drive reporting a C2 error where there is in fact no error present.

A CD can be ripped in burst mode and be verified as accurate by AccurateRip with high confidence. When I rip the same CD in secure mode, some tracks get an additional "Ultra Secure" pass because (I assume) the first pass had C2 errors reported by the drive.

The issue seems to be that the ripper does not compare the rip with AccurateRip if the track had C2 errors, is this true?

I know this is not a problem with dMC, but rather my hardware (though I was under the impression that Plextors had a rather good C2 implementation).

However, if the ripper strategy was to always compare with AccurateRip regardless of reported C2 errors some time and drive wear could be saved.

Maybe a suggestion for a future version?


Regards,
Peter

[Spoon]

Re: Ripper strategy concerning false C2 errors?

Even with c2 errors if accuraterip can verify it will and pass the track.

[JetA1]

Re: Ripper strategy concerning false C2 errors?

That is odd... do you have any idea why a track would verify with AccurateRip when ripped in burst mode but will not verify when ripped in secure mode?

Edit: when ripped in secure mode with "C2 Error Pointers for Error Detection" turned off, the track verifies with AccurateRip as accurate.

[Spoon]

Re: Ripper strategy concerning false C2 errors?

Could be chance, have you tried again with c2?

[JetA1]

Re: Ripper strategy concerning false C2 errors?

Yes, it is very consistent.
With C2 I get AccurateRip failure confidence 6 and a green "i",
Without C2 I get AccurateRip success confidence 8
In burst mode I get the same as without C2

Ultra Secure is off so there is only one pass made.

[Spoon]

Re: Ripper strategy concerning false C2 errors?

This means on your drive that C2 is effecting the audio data, which it should not (as c2 is just a notification system about errors).

[JetA1]

Ripping problems with C2 and UDMA

The drive seems to be ok.
I tested ripping a track with PlexTools with C2 on and off and comparing the two results with the FC utility.
The tracks were identical, so it looks like dMC does not like my drive for some reason...

I've been doing some more testing and found that when I set my drive to PIO mode, a secure rip with C2 in dMC is verified ok by AccurateRip. The rip is much slower of course compared to UDMA.

Any ideas? Can I use the debug mode in dMC to give you some more info?


Regards,
Peter

[Spoon]

Re: Ripping problems with C2 and UDMA

Wether the drive is UDMA or PIO, it is the transport, CD Ripper has no idea if PIO or UDMA is selected and it should not affect the data from the drive.

Which plextor is it? and is your computer a dual core?

[JetA1]

Re: Ripper strategy concerning false C2 errors?

The drive is a Plextor PX-W1210A (aka PlexWriter 12/10/32A).
I don't have a dual core computer. The processor is an AMD Athlon XP 2700+