Clicks on CD Master

Adler · Postby **Adler** » Tue Jan 29, 2008 20:12

Hello all,

I just finished mixing and mastering a CD. I burned the master from the pmi image onto a TY blank using a Plextor PX-712A drive at 16X speed. I did a C1/C2/CU error check with PlexTools--the C1 error rate was low, no C2 or CU errors. When listening back to the CD on certain systems I hear some subtle clicks that were not on the final master in Pyramix. However, some CD players do not exhibit the clicks at all. Does anyone know where the discrepancy may lie? Should I be doing something different when creating the master?

Any thoughts would be appreciated.

Thanks,
Chris

bemi · Postby **bemi** » Sat Feb 02, 2008 21:38

I'd try to burn the same image at 4x speed.

Thomas Grubb · Postby **Thomas Grubb** » Sun Feb 03, 2008 03:12

Hi Chris,

I've noticed the same thing with one of my CD/DVD players, a Panasonic DVD player. It is the only one that produces a slight click at the end of a track. All of my other players play back properly, so I put it down to a peculiarity of that player.

It happens with CD-Rs burnt on Sequoia as well, which has a "check and compare" function, so the clicks are not in the audio.

I tend to record at 16x on a Plextor 716 - I once read that the drives are calibrated to produce the least errors at half their maximum burn speed - whether this is true or not I don't know, but certainly the error count is low when using TY media.

Hope this helps.

Cheers,
Tom

diverse · Postby **diverse** » Mon Feb 04, 2008 11:43

I found that burning at 16x on a 40x burner produces discs with very low errors which i check on a Clover QA-101. 8x is slightly better but your talking average BLER's of around 5 @ 16x

The problem with the current fast burners is that they are not designed for real-time burning unfortunatly.

TY discs are the ones to use for masters without question.

Bernhard Guettler · Postby **Bernhard Guettler** » Mon Feb 04, 2008 12:11

diverse wrote:TY discs are the ones to use for masters without question.

For real "Masters" anything else than DDP is "Semi-Pro" at the best.

Thomas Grubb · Postby **Thomas Grubb** » Mon Feb 04, 2008 14:12

For real "Masters" anything else than DDP is "Semi-Pro" at the best.

If only all manufacturers took DDP masters - not the case in Australia at least - and some others don't seem to know what to do with them once they have one (losing CD-text for example)!

Thanks for the info on error-rates Diverse...may as well make the best of what one has.

Cheers,
Tom

Adler · Postby **Adler** » Mon Feb 04, 2008 16:28

Thanks for the replies. The really strange part is that the clicks are usually not audible after scanning back on the CD and listening to the same passage again.

I am in the process of trying my Plextor SCSI burner at different speeds to see if that makes a difference.

Chris

diverse · Postby **diverse** » Mon Feb 04, 2008 18:00

Bernhard Guettler wrote:
diverse wrote:TY discs are the ones to use for masters without question.

For real "Masters" anything else than DDP is "Semi-Pro" at the best.

And you should use TY discs as I said, new users cannot easily get U-Matic or Exabyte and just becasuse you supply a DDP doesnt mean you should cut corners on the disc you use or the speed you burn the disc at!