Princo 1x with "2x for all" firmware

[bouis]

I've tried 10 Princo 1x discs at 2x. My results:

2x Completed burns: 100%
2x Readable in Lite-On LTD-165H: 100%
2x SFV Verification Successful: 100%

2x "Normal" read speed (~9 minutes): 80%
2x "slow" read speed (~14 minutes): 20%
2x Playable in Apex 1100W set-top player: 60%

1x Completed Burns (~120 so far): 99%
1x Readable in Lite-On LTD-165H: 100%
1x SFV Verification Successful: 100%

1x "Normal" read speed (~9 minutes): 100%
1x "slow" read speed: 0
1x Playable in Apex 1100W set-top player: 100%

Conclusion: The discs work 100% at 2x for use in the Pioneer 104 or the Lite-On DVD-ROMs, but 4 of the 10 gave a "disc error" on the Apex 1100W set-top player. Both that were "slow-reading" in the Lite-On DVD-ROM did not work on the set-top player.

All that burned successfully showed no "pixelation" or read errors at the end of the disc. I create SFV files for all of my discs before burning them, and they all verified okay.

It appears safe to burn at 2x for data, but I wouldn't recommend it for set-top players.

Note: the compatability and performance of these $0.70 1x discs is superior to the "2x" advertised "white top" discs circulating under various names.

Edit: My "system":

2200+ Athlon, VIA KT333 motherboard, 768 MB RAM, Pioneer DVR-104 w/1.33 "2x" firmware. Software: Nero 5.5.9.14

[alexnoe]

This seems to prove that Princo sends all its B-grade crap to germany :angry:

DataTrack (Euro-Dig Disc), burned one at 2x speed, completely unreadable. First read error in Toshiba DVD-ROM occures at 34 MB

[klona]

I have princo 1X (bulpaq 3rd gen, violett ones) and I burned ONE @ 2X with give me a full rip in my DVD116 with no error. Did not try it yet in my standalone. But I bought it from cdr-by-mail, in UK.

At the opposite, GSC-R1-0, just give me a Power calibration error on the early start of the real burning (test phase si OK).
Try on 3 differents as I did not understand what happend at the beginning. 3 coasters...