High Beta Category, Low Beta Category, A+, C-... What does it all mean?

When I do an ATIP check, Feurio shows the disc subtype as being

“Medium Type A, high Beta category (A+),”
“Medium Type A, low Beta category (A-),”
or
“Medium Type B, low Beta category (B-).”

What does all this mean? I’ve spent the last 2.5 hours looking all over the net and I can only find very generic ATIP definitions.

Feurio’s help file is just as useless, stating that

“Because this parameters are only interesting for experts, we do not describe the single parameters. If interested, please read the approbiate documents (e. g. NCITS T101228D INFORMATION TECHNOLOGY -SCSI Multimedia Commands - 2 (MMC-2)).”

Been there, done that. Nothing useful in that document. :frowning: …but at least now I know how the pregroove wobble works. :smiley:

Anybody? :confused:

as they say…for experts only…:stuck_out_tongue:

(but i am curious too)

Me too wonder…
OC? :slight_smile:

hey, do the grades go down any more than “C” because thats the lowest grade ive gotten. it seems that fuerio gives lower scores to old cdrs. my old 6x pioneer cds get a C ranking and my 8x pioneers get a “B+” ranking and as the cdrs get newer the scores get higher. it isnt really fair though because the pioneers work very well with almost any burner and just because they are older they shouldnt get low scores. in my opinion they are alot better than any CMC crap but CMC gets A- scores, doesnt make sense!

That’s not a score, and NOT given by Feurio!. This is simply info read from the disc’s ATIP, and could be anything.

According to what I once saw the Feurio! author write, this info is placed on the CDs by the manufacturer according to anything that they desire. It could be, for ex, an indication of what production line did the disc, of what plant, or whatever they want it to be. It doesn’t mean anything for anyone that’s not familiar with the specific factory’s use of this field, and has no relation whatsoever to the disc’s quality.

Assymetry range(beta range +/-) and media type(A,B,C)
informations are used during OPC to find the best
laser settings for burning on this disc. In the end
you have 6 different disc types : A+,A-,B+,B-,C+,C-
which should be burned slightly differently by
a good drive.

Princo is none of these!!!

Princo is identified as type 0

What about these spath?

Thanks for trying to explain…I’ve never found a good explanation on this anywhere…

> Princo is none of these!!!
> Princo is identified as type 0
> What about these spath?

All beta ranges and media types are defined in the
orange book, and there’s no such thing as a type 0.
I guess Feurio says that because it doesn’t recognize
the values it reads in the ATIP bytes. If you give me
the Special Information 1 ATIP bytes of this disc,
I will check.

I burned a test disc (Memorex by Taiyo Yuden) and beta-scanned it using WSES. The graph showed a consistent +10% across the disc. So this would be what the + designator after the letter refers to? And the letter would represent the amount?

I’m still a bit confused… :confused:

@spath

Hello there !
I was wondering if you could help us to find the truth about this :

ATIP start of lead in: -02:43:69 (sector: -12294)
ATIP start of lead out: 79:59:73 (sector: 359998)
Manufacturer code: 97 16 06
Disc subtype: Medium Type A, low Beta category (A-)

Thanks !

I ran ATIP 97 16 06 through Google and this is what it came up with:

http://www.bofhlet.net/mediji.txt

Traxdata Multi-Colour 74 12x
Total Capacity       : 79:57:74 (359849 blocks, 702/807 MB)
CD-R medium          : 97:16:06: unknown vendor ID
Indicated writing power: 4
Disk sub type: Medium Type A, low Beta category (A-) (2)
ATIP start of lead in:  -12444 (97:16/06)
ATIP start of lead out: 359849 (79:59/74)

And also this:

http://www.geocities.com/TimesSquare/1350/blanks.html

Brand Name:        Bestmedia CD-R80 "blax"
Colour:            not visible
ATIP:              97m 16s 06f
Disc Manufacturer: Unknown Disc Identification Code
Assumed Dye type:  Phthalocyanine (Type 6)
Media type:        CD-Recordable
Recording Speeds:  min. unknown - max. unknown
nominal Capacity:  702.83MB (79m 59s 74f / LBA: 359849)
cdrecord ATIP info from disk:
  Indicated writing power: 4
  Is not unrestricted
  Is not erasable
  Disk sub type: 2
  ATIP start of lead in:  -12444 (97:16/06)
  ATIP start of lead out: 359849 (79:59/74)
Disk type unknown
Manufacturer unknown (not in table)
Rating:            -
Comments:          Not tried yet; The polycarbonate is dark, it's like the
                   IR-transmissive plastic used for IR remote controls.
                   Although some people say that, it is NOT possible to use
                   these discs to make copies of PSX CDs that run without a mod
                   chip.

There’s also a thread about it here: (in German)

http://www.brennmeister.com/forum/viewtopic.php?topic=2059&forum=8

> I burned a test disc (Memorex by Taiyo Yuden) and
> beta-scanned it using WSES. The graph showed a consistent
> +10% across the disc. So this would be what the +
> designator after the letter refers to? And the letter
> would represent the amount?

I never heard of WSES, can it really measure the beta value ?
Anyway a beta range + means that the asymmetry will be between
0 and 12% while a - range means it should stay between -4
and 8% (the usual optimal beta value is 4%). The letters
are unrelated, they define a delay time before applying
a laser write pulse on the disc.

> Manufacturer code: 97 16 06

Sorry, not in my list.

Drive Type = CD-RW
Disc Type = CDR
Material = Phthalocyanine
Lead In = 97:16:06
Lead Out = 79:59:73
Nominal Capacity = 702.83MB
Manufacturer Maybe = RiTEK,PNY,MB India,Gigastorage
SMART-BURN Speed Limit = 16X (Write)

Thanks for the info. :slight_smile:

> I never heard of WSES, can it really measure the beta value ?

Do a search here for it. There’s a few threads in the Lite-On forum about it. It appears to be very able to check beta and a few other things as well… :wink:

I did some more looking about that ATIP and it appears that OC-Freak posted on another forum that he thought they were RiTEK. I guess that’s really the best we can do until a new version of Feurio! comes out.

You mean, the current version is not capable of defining it ?

As for OC-Freak . I guess I remember that thread, but that was just a pure guessing. And that’s why I bought the Memorex- just to be sure about it.
And I don’t get it, why Memorex had to hide the info about the manufacturer ?

Yes. Either it’s a new manufacturer ATIP assignment or an invalid one. Interesting how the ATIP manufacturer code matches the ATIP start of lead-in.

> Interesting how the ATIP manufacturer code
> matches the ATIP start of lead-in.

That’s a bit normal, that’s how it works :slight_smile: There are
no manufacturer informations a disc, manufacturer
is deduced from the start of lead-in time.

Oh. I wondered about that. :slight_smile:

So bottom Line…!
How do you tell if one disk is better then another using Any ATIP reader???:confused: