Questo
nuovo tipo di protezione sta dando dei notevoli grattacapi ai
normali utilizzatori di CloneCD,
infatti le copie realizzate con questo programma risultano funzionanti
solo se realizzate con particolari CD-Writers e non con tutto
l'hardware testato per funzionare con Clone; lo stesso Oliver
Kastl, il creatore di Clone, dà una spiegazione plausibile
del motivo per cui il suo programma fallisce con questa nuova
protezione, se abbinato con un certo tipo di masterizzatore:
"...SD2 is
a very interesting beast, as some of you already know. Sometimes
a copy works only in the CD-Writer, sometimes not at all. Sometimes
- depending on the writer used - in any CD-ROM. Some people claim,
that they had success with other burning software. Let me explain,
what the reason for all this might be. (I say "might be", as the
information here is just revealed through observation, but I believe
I am at least pretty close) The first funny thing is, that if
a SD2 copy doesn't play in a CD-ROM, this copy has additional
bad sectors, which weren't on the original. As CloneCD reads and
writes "as is!", I would have assumed, this is simply impossible.
So, if you are a curious guy, you can look at these sectors on
the original CD (where they are readable). You will find a lot
of garbage on the first view. But if you run these sectors through
a sector scrambler (a device, which is in every CD-ROM and CD-WRITER)
you see the reason for all the trouble: Regular patterns like
'XYXYXYXYXY...' and so forth. And this is exactly how the protection
works. To understand this, you need to know, what the scrambler
is used for (from ECMA-130, ISO/IEC 10149): "A regular bit pattern
fed into the EFM encoder can cause large values of the digital
sum value in case the merging bits cannot reduce this value. The
scrambler reduces this risk by converting the bits in byte 12
to 2351 of a Sector in a prediscribed way. ..." The sectors I
have mentioned above try in fact to overload the EFM encoder of
the CD-Writer, because *AFTER* passing the scrambler the poor
device has to write *REGULAR BIT PATTERNS* - something it really
doesn't like. After some quick tests, it seems, that some writers
are affected by this problem more than others. For example,
writers based on Philips hardware (Philips, Fujitsu/Siemens, Acer,
just to name a few) are NOT affected by this at all. With
such a writer, you can copy SD2 with any CloneCD version, and
the copy will run on every CD-ROM. Most other writers will not
write these sectors correctly. Some writers (Plextor) can at
least read the copy they've made, so the copy will run in
the writer, but not in an ordinary CD-ROM. The reason for this
might be, that the writer is able to position better, but this
is just guess. I must admit, this is a very, very cool protection:
Something is on the original which can be read, and not be written.
I really didn't believe such a protection is possible. Now for
the interesting question: Will CloneCD ever be able to overcome
this problem? Well, you can answer this yourself: I guess not...."
Per ora i giochi protetti con Safedisc
2 sono:
- American McGees Alice
- B-17 Flying Fortress
- Delta Force Land Warrior
- Red Alert 2
- No One Lives Forever
- HitMan
- Tony Hawks 2Pro Skater
- Swedish Touring Cars Championship
2
- Sacrifice
- Mulle Meck Byger Flygpan(Swedish
game)
L'hardware,
che in combinazione con CloneCD, riesce a realizzare copie funzionanti
di CDROM protetti con Safedisc 2, risulta al momento questo:
Marca
e Modello |
Note |
Acer 4432
Acer 6432
Acer 8432a 8 MB buffer Firmware 5.1V
Acer 8432ia 2 MB buffer Firmware 5BX
Acer 1208A
Acer 1032A 4MB Buffer
|
I recorder realizzano
copie di CD protetti con SD2 funzionanti in ogni drives. |
Artec CD-RW WPA28 |
I recorder realizzano
copie di CD protetti con SD2 funzionanti in ogni drives. |
Freecom 2/2/24 |
I recorder realizzano
copie di CD protetti con SD2 funzionanti in ogni drives. |
Fujitsu Spinbird
4x4x32x Firmware 1.4b
Fujitsu Spinbird 8x4x32x Firmware 2.0 |
I recorder realizzano
copie di CD protetti con SD2 funzionanti in ogni drives. |
HP8250i (Philips)
HP9300i |
HP9300:
La copia di CD protetti con SD2 non funziona.
HP8250: realizzano copie di CD protetti con SD2 funzionanti
in ogni drives. |
Iomega 8432 Firmware
1.1 |
Il recorder realizza
copie di CD protetti con SD2 funzionanti in ogni drives. |
LG CED-8080B |
La copia di CD
protetti con SD2 non funziona. |
Philips 800 Series internal
IDE 8x4x32
Philips CDD4401-31 IDE 4x4x32 Firmware 1.4b
Philips CDD4801 Firmware 2.0
Philips PCRW804K Firmware 2.0
Philips CDD3801 CD-R/RW Firmware 1.6
Philips CDD4201 |
I recorder realizzano
copie di CD protetti con SD2 funzionanti in ogni drives. |
Plextor 8/2/20 Firmware 1.04
Plexwriter 8/20 Firmware 1.7
Plexwriter 8/4/32 IDE Firmware 1.7
Plexwriter 12/10/32A
Firmware 1.7
Plexwriter 12/4/32 SCSI
|
Plextor 8/4/32,
12/4/32S, 12/10/32: la copia funziona solo nel recorder.
Plextor 8/20, 8/2/20: realizzano copie di CD protetti
con SD2 funzionanti in ogni drives. |
Ricoh 6200 Firmware 2.40
Ricoh MP-7083A
Ricoh 7060A Firmware 1.70 |
Non confermati
ancora |
Sony |
Non confermati
ancora |
Traxdata CD-RW 8432 Plus
Traxdata CD-RW 4432 Plus
Traxdata CD-RW 4424 Plus |
I recorder realizzano
copie di CD protetti con SD2 funzionanti in ogni drives. |
Waitec 8x4x32
Waitec 3244
Waitec 2444 |
Waitec 8/4/32:
la copia funziona solo nel recorder
Waitec 3244, 2444: realizzano copie di CD protetti
con SD2 funzionanti in ogni drives. |
Yamaha |
La copia di CD
protetti con SD2 non funziona. |
|