[QUOTE=engine;2235861]Well, then seems to be a good idea, to opt for the lowest speed rated media.[/QUOTE]

I think so too

[QUOTE=CDan;2235864]Because the NEC 3550 drive does not have firmware support for 1x burning, I suspect that it is in fact writing at 4x and suffering continuous buffer under-runs. This will account for poor quality burns. The surprising thing is that youâ€™re getting readable discs out of it at all. The drive will automatically set speed at 4x when any of these discs are inserted, and this cannot be changed. Been a while since I had a 3550, it might possibly have support for 2x on some -R media, but itâ€™s doubtful.[/QUOTE]

I loaded the latest fw for 3550 to Media Code Speed Edit. In the following text you can see the writing strategies for RW media. For +RW it seems that the lowest available speed is 2.4x, and for -RW it is 1x!!! Maybe if I can find these 1x media, the NEC will write them at 1x, and the results will be better! I hopeâ€¦

And probably I could swap a strategy from a 1x media to the media I haveâ€¦ I think I have to disassemble the standalone again and â€śpatchâ€ť the NEC fw again

What do you think???

That was really helpful!! Thanks a lot

## Media Code Speed Edit V 1.1.0.21

Firmware: NEC DVD_RW ND-3550A 1.0706101900

Bootcode:

## DVD+RW supported media types: 31

CMC W01 2.4x

CMC MAG W01 2.4x

CMC MAG W02 4x,2.4x

CMC MAG W03 8x,6x

DAXON D42 4x,2.4x

INFODISC A01 2.4x

INFODISC A10 4x,2.4x

MBIPG101 W03 2.4x

MBIPG101 W04 4x,2.4x

MBIPG101 W05 8x,6x

MCC A01 2.4x

MKM A02 4x,2.4x

MKM A03 8x,6x

NANYA DRW 4x,2.4x

NANYASC DRW 2.4x

OPTODISC OP1 2.4x

OPTODISC OP4 4x,2.4x

PHILIPS 010 2.4x

PHILIPS 041 4x,2.4x

PHILIPS RW8 8x,6x

PRODISC W01 2.4x

PRODISC W02 4x,2.4x

RICOHJPN W01 2.4x

RICOHJPN W11 4x,2.4x

RICOHJPN W21 8x,6x

RITEK 001 2.4x

RITEK 004 4x,2.4x

RITEK 008 8x,6x

SENTINEL W01 2.4x

SENTINEL W02 4x,2.4x

SONY S11 4x,2.4x

## DVD-RW supported media types: 45

CMCW02 2x,1x

CMCW03 4x,2x

CMCW04 6x,4x,2x

DAXON_RW2X01 2x,1x

INFOMEDIA 2x,1x

INFOMEDIAA20 4x,2x

JVC/VictorT7 1x

JVC0VictorD7 4x,2x

JVC1Victord7 6x,4x,2x

JVC_VictorW7 2x,1x

MBI01RWG 20 4x,2x

MCC 00RW11N9 1x

MCC 01RW11n9 2x,1x

MCC 01RW4X 4x,2x

MKM 01RW6X01 6x,4x,2x

MXLRW001M X 2x,1x

OPTODISCK001 1x

OPTODISCK001 2x,1x

OPTODISCW002 2x,1x

OPTODISCW004 4x,2x

OPTODISCW006 6x,4x,2x

PRINCO 1x

PRINCO 1x

PRINCORW0004 4x,2x

PRINCORW2X01 2x,1x

PVCW000001Q9 1x

PVCW000002A9 1x

PVCW00D002K9 2x,1x

PVCW00V00245 2x,1x

Prodisc DW04 2x,1x

Prodisc DW06 4x,2x

ProdiscDVDRW 1x

RITEK V11 1x

RITEK000V11A 1x

RITEK004V11 1x

RITEK005V11 1x

RITEKW01 2x,1x

RITEKW04 4x,2x

RITEKW06 6x,4x,2x

SONY000000U9 1x

TDK401saku=3 1x

TDK501saku]3 1x

TDK502sakuM3 2x,1x

TDK601saku 4x,2x

TDK701saku 6x,4x,2x