i recently bought a LTR-48215W drive…
it came with a CDRW i can write at 12x
the i used some of them cdrws i had before it only writes at 4x 
does anyone know… if its possible at all to make the drive/software to write at higher than 4x? like fooling the software so it thinks the cd is highspeed one?
thank you 
No you cant do it, 1X to 4X CD-RW are chemicaly different to 4X to 12X CD-RW.
Yeah, you can’t do it.
1x - 4x only burn at 4x in any drive. Even i thought of that.
Just a question, can the 10x cd-rw be burnt at 12x
Yes because the formula of the phase change material used falls in to the correct writing strategy
Smart-burn has many of the 4x-10x showing 12x on my 40125S as top speed. I guess many of the 4x-10x CD-RW’s were made when top re-writeable speed was 10x on burners. Only the
manufacturers know what the real top speed of their cd-rw’s are.
A Local store is offering me a Princo 4x - 10x 700 MB and a Princo 4x - 10x 650 MB CD-RWs at a very cheap price.
I asked him about 12x CD-RWs. He says, it is not available in the market.
Has anyone burnt at 12x on these Princo CD-RWs on a Lite-On 48x12x48x (LTR-48125W).
Buy 1 and try it, but it will work at 12X. Like i said it falls in to the correct writing strategy. I have some CD-RW rated at 4X to 8X and they work fine at 12X
OK I’ll try & post the experience here.
Yeah, the Princo CD-RW 700MB rated 4x - 10x can be burnt at 12x on my Lite-On 48x12x48x.
Here is the info provided by the SmartBurn Prog:
Disc Type, Material = HSCD-RW, Phase Change
ATIP Lead-in = 97m 27s 29f
Norminal Capacity = 702.83MB (79m 59s 74f)
Disc Manufacturer maybe = Princo
SMART-BURN Speed Limit = 12X