T40 CD Burner won't burn at 16x

[K. Eng]

My CD-RW/DVD wouldn't burn at 16x this past weekend, and all I would get were awful clacking noises and a coaster as a result.

IBM sent out a new optical drive and I plugged it in, but it still won't burn disks at 16x! I tried this afternoon... the burning software (Sonic Recordnow! from IBM) just hung and the drive spun faster and faster and made high pitched noises

I had to restart my computer and try again at 8x. 8x burning went without incident, although it seemed to take forever. What could possibly be wrong? I already checked to make sure DMA was enabled on both IDE channels, and the software is the latest revision IBM offers.

Drive is a Matshita UJDA745 rated at 16/8/16.

[rssb]

I had similar issues in the past, got a chance even to speak to the design engineers.

It turns out that that 16x is some kind of a theoretical maximum possible, and is never acheived for the entire burning process, it starts at a particular speed then drops down and towards the end again ramps up slowly towards 14x or so

I was suggested that use high quality media etc, i tried, verbatim, fuji, sony , you name it and i must have tried it and end result was still the same.

If you cannot spend the extra time during burns, the only solution is get a faster external writer like 32x or 48x.

UJDA745, UJDA755 , SD-R9002 all of them gave the same result ( these are 9.5mm slim cdrw/dvd combos , which ibm used )


The 24x burners dont burn at 24x, they burn somewhere around 16x

Hope this helps and you dont end up spending a lot buying and testing different brands of media.