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[kcl]

I've read all the post regarding playing CD-R:s on these units and it seems to be highly recommended not to play self-burnt stuff. Many members have faced problems playing CD-R:s, not all discs are playable at all.

I have used copied discs and have met this problem also but also think have found a solution. I burnt a few discs with lower burning speeds, 10x instead of 52x or 24x and it seems to work ok... Don't know for how long and might be I'm burning my laser more quickly but at least the copies work now.

Does anyone have any idea how the lasers work? Is there a solution within the lower burning speed or am I just being lucky and will have a broken CCR2006 in a while...

[Marks DTM Calib]

What yah want to know.....the full detail of how it all works or a simplified version of why copied discs cause issues?

[Andy H]

I discovered the same issue with burning DVD's on my PC to watch on my domestic DVD player.

The explanation I saw that made most sense is that CD/CVD burning speed is limited by (amongst other things) how quickly the laser can be switched on and off. At the highest speed the disc is moving past the laser so quickly that the transition between on & off tends to smear a little. If you slow the disc down then the transition between on & off becomes more sharply defined.

I always burn CD's or DVD's at the slowest speed I can now to maximise the chance of it being readable by older devices. 

I can't add anything useful to the discussion about Philips laser focusing. All I know is that my first domestic CD player was a Philips and that failed with similar symptoms.

[Dave DND]

or am I just being lucky and will have a broken CCR2006 in a while...

Yep, another dead 2006 on the way.

This really has been debated on this forum to death, and all the answers are on here if you read back through previous posts.

Quick explanation. a CDR is NOT the same as a CD. The data dots/images/pits etc are significantly smaller on the CDR and the laser designed for CD will struggle and strain itself to destruction by trying to read them.

Liken it to looking at something very small and close up by squinting your eyes - yes, you may be able to see it for a while, but it will knacker your eyesight if you do it for any length of time.

 

[kcl]

Thanks for the replies. What I want to know is that why the slower speed burning gives better result playing the cd:s. And does this have anything to do with the expected life time of my HU?

[kcl]

or am I just being lucky and will have a broken CCR2006 in a while...

Yep, another dead 2006 on the way.

quote]

The best part is that when I have destroyed the 2006 I can better justify my "daydream" of having NCDC2015 with color screen 

[Andy H]

Thanks for the replies. What I want to know is that why the slower speed burning gives better result playing the cd:s. At the highest speed the disc is moving past the laser so quickly that the transition between on & off tends to smear a little. If you slow the disc down then the transition between on & off becomes more sharply defined.

And does this have anything to do with the expected life time of my HU?No. As DaveDND said the Philips lasers tie themselves in knots trying to focus on a narrow CDR track and fail as a result

I had a CCR2006 with BOSE in my car when I bought it. It even struggles with some pressed CD's. I have taken it out (and stored it) and put a Blaupunkt head unit in that plays anything and everything. Does look slightly out of place though 

[Andy H]

or am I just being lucky and will have a broken CCR2006 in a while...

Yep, another dead 2006 on the way.

quote]

The best part is that when I have destroyed the 2006 I can better justify my "daydream" of having NCDC2015 with color screen 

I don't think the NCDC2015 can cope with CDR's either  :-/

[kcl]

No, but color screen makes listening to cd:s unnecessary  It would really make my car and my day, though they are abit expensive...

[TheBoy]

Slower burn along with quality media results in less jitter, making the laser focusing not having to work quite so hard (though still much harder than a pressed CD)