With herries beta6 fimrware for the nec2500 i have strange probs with cdrw.i use verbatim 16x-24x cdrw and platinum 12x cdrw.
there are many errors on the discs.Nero cd speed cant read them in my tosh with the info :"no additional sense information" and the info with read in the nec : "Illegal Mode for this track"
back to 1.06 no probs.
Don't have any trouble burning or reading CDRW here, although C1/C2 error rates are pretty high. But this is always true with most CDRW I've tried.
I've been burning Sony 10x CDRW's with 1.07b6 with no problems.
I am using Herrie's beta6 on my drive. Perfect results on my 16x Verbatim CD-RW.
Be sure to test an ordinary data disc. AFAIK, some formats (for example VCD) cannot be benchmarked in Nero CD Speed.
i tested with svcd!but dvdinfo must read the disc?dvdinfopro read also errors!
When I try to benchmark a S-VCD in CD Speed, I also get error messages. If I remember correctly, the same ones as you.
I do not use DVD Info for benchmarks.