Nero CD Speed 'Scandisc' experiences

vbimport

#1

I asked a question about nero cdspeed a few weeks ago about what is acceptable of errors on a cd, and no one really good give me a straight to the point answer...

well,
now i finished testing my mp3 collection and i know why no one could tell me too

the results are fare too unpredictable!!

ill post all results bellow and if there is some statistics freak on cdfreaks who could get usefull conclusions out of this: then be my guest :stuck_out_tongue:

[b]IMPORTANT NOTE[/b]: 
all cds read by the a-open, or another reader IF they have a speed above 22x,
are read one by one
the other cds (the ones read by the liteon or mitsumi with a speed below 22x),
are read two by two

ive read the cds first with the a-open and after that i took the worst cds +
one normal cd of each type, and read those with the other two readers

i have divided my cds in 2 parts (DATA1 and DATA2)... they are both from old to new

[b]RESULTS[/b]

DATA1
_____

%dam = % damaged sectors
%unr = % unreadable sectors
rspeed = readspeed

CD NR	media		%dam	%unr	rspeed	reader
------------------------------------------------------

1(1)	mmore-74-MS	0.12	0	15	aopen
1(2)	mmore-74-MS	0	0.12	28	liteon
1(3)	mmore-74-MS	0	0.72	27.5	mitsumi
2	basf-74		3.45	0	15	aopen
3	nashua-74	0.11	0	15	aopen
4(1)	nashua-74	0	0	10	aopen
4(2)	nashua-74	0	0	?	liteon	no data found??
4(3)	nashua-74	0	0	19	mitsumi
5	nashua-74	0.46	0	15	aopen
6(1)	unknown-74	4.76	0	5	aopen
6(2)	unknown-74	5.19	0.11	22.4	liteon
6(3)	unknown-74	0	0.95	20	mitsumi
7(1)	basf-74		5.13	0.80	3	aopen
7(2)	basf-74		0.11	0	28	liteon
7(3)	basf-74		0	0.34	16.5	mitsumi
8	basf-74		2.44	0	15	aopen
9(1)	basf-74		0	0	15	aopen
9(2)	basf-74		0	0.11	25	liteon
9(3)	basf-74		0	0.89	27.8	mitsumi
10	basf-74		0	0	15	aopen
11	basf-74		1.12	0	15	aopen
12(1)	basf-74		12.35	0	15	aopen
12(2)	basf-74		0.12	0	17.5	liteon
12(3)	basf-74		0.23	0	22.5	mitsumi
13	platinum-80-16	0	0	15	aopen
14(1)	nashua-74	0	0	?	aopen	no data found??
14(2)	nashua-74	0	0	29	liteon
14(3)	nashua-74	0	0	?	mitsumi	no data found??
15	basf-74		0.11	0	15	aopen
16(1)	nashua-74	0	0	15	aopen
16(2)	nashua-74	2.57	0	23.4	liteon
16(3)	nashua-74	0.34	0	14.5	mitsumi
17	basf-80-12	6.79	0	15	aopen
18	maxel-74	0	0	12.5	aopen
19(1)	basf-80-12	0	0	15	aopen
19(2)	basf-80-12	0	0	24	liteon
19(3)	basf-80-12	0	0.64	15	mitsumi
20	basf-80-12	0	0	15	aopen
21(1)	basf-80-12	9.14	0	14.5	aopen
21(2)	basf-80-12	0	0	15	liteon
21(3)	basf-80-12	0	0.54	25	mitsumi
22	basf-80-12	3.06	0	15	aopen
23(1)	platinum-80-MS	13.75	0	15	aopen
23(2)	platinum-80-MS	15.95	0	16.5	liteon
23(3)	platinum-80-MS	0	0.10	15	mitsumi
24(1)	platinum-80-MS	29.03	0	7.5	aopen
24(2)	platinum-80-MS	19.04	0	15.5	liteon
24(3)	platinum-80-MS	0	0.31	17	mitsumi
25(1)	platinum-80-MS	33.58	0.10	10.5	aopen
25(2)	platinum-80-MS	21.51	0	12	liteon
25(3)	platinum-80-MS	0	0	12.5	mitsumi
26(1)	platinum-80-MS	22.09	0	15	aopen
26(2)	platinum-80-MS	22.93	0	12.5	liteon
26(3)	platinum-80-MS	0	0	12	mitsumi
27(1)	platinum-80-MS	15.90	0	14.5	aopen
27(2)	platinum-80-MS	16.76	0	19	liteon
27(3)	platinum-80-MS	0	0	17.5	mitsumi
28	platinum-80-16	0.63	0	12.5	aopen
29	platinum-80-16	0.21	0	15	aopen
30	platinum-80-16	2.18	0	15	aopen
31(1)	platinum-80-16	0	0	15	aopen
31(2)	platinum-80-16	6.95	0	17.5	liteon
31(3)	platinum-80-16	0	0	19	mitsumi
32	platinum-80-16	1.16	0	15	aopen
33	platinum-80-16	0.63	0	15	aopen
34	platinum-80-16	0	0	13	aopen
35	platinum-80-16	0.11	0	15	aopen
36	platinum-80-16	0.11	0	15	aopen
37	platinum-80-16	0	0	15	aopen
38(1)	platinum-80-16	5.68	0	7	aopen
38(2)	platinum-80-16	5.68	0.10	17	liteon
38(3)	platinum-80-16	0	0	19	mitsumi
39	platinum-80-16	0	0	12	aopen
40	platinum-80-16	0	0	15	aopen
41	platinum-80-16	0.63	0	15	aopen
42	platinum-80-16	0	0	15	aopen
43	platinum-80-16	0	0	15	aopen
44	platinum-80-16	1.05	0	15	aopen
45(1)	hispace-80	3.70	0	14.5	aopen
45(2)	hispace-80	3.49	0	19	liteon
45(3)	hispace-80	0	0	17	mitsumi
46	hispace-80	0	0	15	aopen
47(1)	hispace-80	0	0	15	aopen
47(2)	hispace-80	1.26	0	19.5	liteon
47(3)	hispace-80	0	0	20	mitsumi
48	hispace-80	0	0	13.5	aopen
49	hispace-80	0.84	0	15	aopen
50(1)	hispace-80	2.09	0	15	aopen
50(3)	hispace-80	1.77	0	20.5	liteon
50(3)	hispace-80	0	0	19	mitsumi

DATA2
_____

CD NR	media		%dam	%unr	rspeed	reader
------------------------------------------------------

1	basf-74		0.93	0.12	14.5	aopen
2	nashua-74	0	0	14.5	aopen
3	nashua-74	4.01	0	15	aopen
4	platinum-80-16	1.56	0	15	aopen
5	nashua-74	0	0	14.5	aopen
6	nashua-74	0.11	0	15	aopen
7	basf-80-12	0	0	15	aopen
8(1)	maxel-74	8.40	0	14	aopen
8(2)	maxel-74	1.79	0	7.5	liteon
8(3)	maxel-74	0	0.34	18.5	mitsumi
9(1)	maxel-74	0	0	11.5	aopen
9(2)	maxel-74	1.78	0	19.6	liteon
9(3)	maxel-74	0	0	7	mitsumi
10(1)	maxel-74	0	0	15	aopen
10(2)	maxel-74	0	0	18	liteon
10(3)	maxel-74	0	0	15.5	mitsumi
11	maxel-74	0	0	15	aopen
12	basf-80-12	0	0	15	aopen
13	basf-80-12	0	0	15	aopen
14	basf-80-12	0.32	0	15	aopen
15(1)	platinum-80-MS	31.20	0	7	aopen
15(2)	platinum-80-MS	22.27	0	16	liteon
15(3)	platinum-80-MS	0	0.42	18	mitsumi
16	platinum-80-16	0.31	0	15.5	aopen
17	platinum-80-16	0	0	15	aopen
18	platinum-80-16	2.18	0	15	aopen
19	platinum-80-16	0	0	15.5	aopen
20	platinum-80-16	0.84	0	15.5	aopen
21	platinum-80-16	0.10	0	15	aopen
22	hispace-80	0.11	0	15	aopen
23	hispace-80	0.83	0	15	aopen

[b]CD-TYPES[/b]

[b]mmore-74-MS = MMore 74 Min Multispeed from ? (very old)[/b]

ATIP:              97m 26s 60f
Disc Manufacturer: CMC Magnetics Corp.
Reflective layer:  Dye (Long strategy; e.g. Cyanine, Azo etc.)
Media type:        CD-Recordable
Recording Speeds:  min. unknown - max. unknown
nominal Capacity:  658.89MB (75m 00s 00f / LBA: 337350)

[b]basf-74 = BASF 74 Min ?x from ? (very old)[/b]

ATIP:              97m 26s 60f
Disc Manufacturer: CMC Magnetics Corp.
Reflective layer:  Dye (Long strategy; e.g. Cyanine, Azo etc.)
Media type:        CD-Recordable
Recording Speeds:  min. unknown - max. unknown
nominal Capacity:  658.89MB (75m 00s 00f / LBA: 337350)

[b]basf-80-12 = BASF 80 Min 1-12x from ? (old)[/b]

ATIP:              97m 28s 26f
Disc Manufacturer: Multi Media Masters & Machinery SA
Reflective layer:  Dye (Short strategy; e.g. Phthalocyanine)
Media type:        CD-Recordable
Recording Speeds:  min. unknown - max. unknown
nominal Capacity:  702.83MB (79m 59s 74f / LBA: 359849)

[b]nashua-74 = Nashua 74 Min ?x from ? (very old)[/b]

ATIP:              97m 26s 60f
Disc Manufacturer: CMC Magnetics Corp.
Reflective layer:  Dye (Long strategy; e.g. Cyanine, Azo etc.)
Media type:        CD-Recordable
Recording Speeds:  min. unknown - max. unknown
nominal Capacity:  658.89MB (75m 00s 00f / LBA: 337350)

[b]platinum-80-MS = Platinum 80 Min Multispeed from ? (old)[/b]

ATIP:              97m 27s 01f
Disc Manufacturer: Digital Storage Technology Co., Ltd.
Reflective layer:  Dye (Long strategy; e.g. Cyanine, Azo etc.)
Media type:        CD-Recordable
Recording Speeds:  min. unknown - max. unknown
nominal Capacity:  702.83MB (79m 59s 74f / LBA: 359849)

[b]platinum-80-16 = Platinum 80 Min 16x from cdrwinkel (little more then 1 year old)[/b]

ATIP:              97m 27s 01f
Disc Manufacturer: Digital Storage Technology Co., Ltd.
Reflective layer:  Dye (Long strategy; e.g. Cyanine, Azo etc.)
Media type:        CD-Recordable
Recording Speeds:  min. unknown - max. unknown
nominal Capacity:  702.83MB (79m 59s 74f / LBA: 359849)

[b]hispace-80 = Hi Space 80 Min 24x CDs from cdfreaksshop (few months old)[/b]

ATIP:              97m 25s 07f
Disc Manufacturer: MPO
Reflective layer:  Dye (Short strategy; e.g. Phthalocyanine)
Media type:        CD-Recordable
Recording Speeds:  min. unknown - max. unknown
nominal Capacity:  702.69MB (79m 59s 00f / LBA: 359775)

[b]maxel-74 = Maxel 74 Min ?x from ? (very old)[/b]

ATIP:              97m 31s 01f
Disc Manufacturer: Ritek Co.
Reflective layer:  Dye (Long strategy; e.g. Cyanine, Azo etc.)
Media type:        CD-Recordable
Recording Speeds:  min. unknown - max. unknown
nominal Capacity:  656.69MB (74m 45s 00f / LBA: 336225)

[b]unknown = unknow 80 Min ?x from ? (very old, and is printed with a cdcover)[/b]

ATIP:              97m 28s 12f
Disc Manufacturer: Gigastorage Corp.
Reflective layer:  Dye (Long strategy; e.g. Cyanine, Azo etc.)
Media type:        CD-Recordable
Recording Speeds:  min. unknown - max. unknown
nominal Capacity:  698.88MB (79m 33s 00f / LBA: 357825)


[b]READERS[/b]

mitsumi cd-rom FX4820T!B (48x)
lite-on cd-rewriter ltr-24102B 5S5A (40x24x10x)
a-open cd-rewriter crw9420 1.40 (20x4x4x)

A little remark:

I really dont understand the CDs that werent recognised in explorer (it seemed like no cd was in it), nor the nero cdspeed file chk, but that the surface control DID work AND gave NO ERRORS AT ALL????

the first cd that had this wasnt recognisable in my a-open and mitsumu, but the liteon had no problem at all with it
the second cd wasnt recognisable in the liteon and the other two had no problems at all with it??

can someone explain this??? how this is possible... why doesnt the drive see it?


#2

thx 4 all feedback
:slight_smile:


#3

Mastakilla,

For the past six months, I was trying to understand the quality of CD-Rs and learn from others’ opinions. I didn’t quite understand some people’s love/hate opinions on certain brands. My general impression from others was that Kodak, Taiyo Yuden, and Mitsui had the best quality product while most, if not all, made-in-Taiwan brands sucked. My only problem was that no one seemed to provide any scientific evidence supporting the argument that why certain brands were better than others.

Only very recently I discovered that people started using the ScanDisc from Nero CD Speed to justify the quality of certain brands. Like you, I also tried out the program and basically had very similar results as yours except that I stopped with only a few CDs.

What you have here basically confirmed what I had suspected all along, that the so called quality of each brand of CD-Rs, if there is ever such an objective measurement, is conditional on the burner/reader you use and probably one hundered other factors. This also explains why some people may praise a certain brand, but you can always find dissenting voices.

I also discovered that if you use ScanDisc on the same disc in the same drive more than once, you could get very different results. For several discs, I couldn’t get a clean read the first time, but got 0% error the second time. What did this mean? No consistency even for the same disc in the same drive, let alone in different drives.

I certainly understand that people who paid big bucks for the premium discs wanted to justify their decisions. Unfortunately, even if your sample of 1,000 discs all turned out to be no error, it means very little in terms of the population of hundreds of millions of CDs manufactured, it is just statistically insignificant.

What can we do from here? At least when you want to report the quality of a certain brand, also let us know which CD burner/reader you used to get the results. So people could decide whether the information is relevant to their purchase decisions.

P.S. I think the reason no one responded so far is that this topic is more appropriate in the CD-RW forum. There are constant debates on which brand sucks or rules. At least they could start using the ScanDisc to support their argument.