Plextor 12x CDR-W Problems.......incompatible media?

[rockbottom]

okay here's the deal. i've burned about half a spindles worth of coasters, with generic media, and the other half find at 12x. (the ones with no printing on the top). i've noticed that the coasters ALL end at approximately the exact same place, around the 560 meg mark. i've been burning these all at 12x, is it possible that they're not compatible with 12x? why would all the discs get errors at the same place?


thanks for any help..

 

[TonyT]

When you say that all of the coasters "end", do you mean the cd recording process stops at the 560 MB mark, or do you mean the cd recording process continues through to the end, but when you visually inspect the disk, it is not completely full? If the recording process itself stops, are you getting any error messages (such as buffer underruns)? If you could provide a bit more info, it might be helpful.

 

[rockbottom]

well the discs end as in the recording proccess stops, and i get error messages. i get a "buffer under-run or write error" message. my plextor has BURN-proof so that shouldn't be a problem. i don't do anything while it burns anyways. so when i inspect the discs, they have all gotten errors at the same mark...sorry i wasn't clearer earlier.

 

[TonyT]

When you purchased the media, did it indicate a specific range of write speeds supported (i.e. 1x-12x)? If the discs do not support 12x, then it is possible that the media is not compatible with that fast speed. Something to try if you have the time: Try recording approx. five discs at 8x. If they all work, it would be safe to say that the media is incompatible.

Is this the first time you are using your cdr, or have you burned cd's using a different brand of media previously? If so, did it work correctly at 12x?

 

[rockbottom]

im only using these becuase i have like 4 spindles worth of these generic ones. it never said anything on the package...i just tried burning it at 8 and it worked like a charm...so im thinking its incompatible. i tried another brand and it worked fine at 12.


since im assuming its not compatible with 12, does that automatically mean it should be fine with 8?? and why would some of the discs burn at 12 if its not compatible...?

thanks again.

 

[TonyT]

Okay, I think we can safely say the media is incompatible at the 12x write speed.

As to why some cd's worked at 12x, I'm not really sure. Perhaps it's the same reason why some processors can be overclocked while others cannot. Maybe cdr media is given a certain "grade" (speed rating) at the factory, and sometimes you might get lucky and find a disc that, while being rated at a lower speed, will still work at a higher speed.

If the cd's recorded correctly at 8x previously, I don't see why they wouldn't continue to work at that spec. If while you're working with them you start experiencing more problems, give a holler and I'll try to help some more.

 

[rockbottom]

thanks for all the help brah.

appreciate it.

 

[TonyT]

Not a problem friend.

 

[Phane]

Yeah, that's my experience with burning CD's. They are "rated" at a certain speed. So if you have CD-R's that are rated at 8x, then they should be (roughly) 99% reliable being burned at 8x. Burn 8x rated CD-R's at 12x and you might see problems, you might not. Depends on how lucky you are with defects. (Just like processors being overclocked, yes). Some 8x rated CD-R's will have defects miniscule enough to burn at 12x, but they are not manufactured to be reliable at anything faster than 8x.