0.8.2 ISO too large for business card CDRs
Forum: User Feedback
Topic: 0.8.2 ISO too large for business card CDRs
started by: KnightFire
Posted by KnightFire on Oct. 02 2004,05:49
Hi,Just figured out why my burns are suddenly failing - coastered 3 discs :-(
The DSL 0.8.2 ISO is 51425280 bytes,
DSL 0.8.1.1 ISO is 51314688 bytes, and
DSL 0.8.0 ISO is 51292160 bytes in size.
It appears that the maximum size my business card sized CDRs can handle is 51392512 bytes.
Can you release a 0.8.2.1 that is below my business card threshold?
--
KnightFire
Posted by mikshaw on Oct. 02 2004,06:03
That's only 49MB isn't it? I think you've been ripped off.
Posted by KnightFire on Oct. 02 2004,06:17
Hi,I've been checking the atip of my discs... and they are all over the place :-(
Some are new Ritek Co., some are Old Code Riteks, some are Multi Media Masters & Machinary SA; some read correctly as 26101 sectors (5:50min, 534548xx bytes), some as 445100 sectors (74:59min).
The good ones appear to be by Ritek Co. I'll continue checking and post the info I find.
--
Peace and Long Life,
KnightFire
Posted by KnightFire on Oct. 02 2004,20:25
Hi,I was buying my "noname" Business Card sized CD-Rs from Staples here in Canada, a 20 pack by Merangue. Merange International Ltd. appears to import these from China, they call it their "IDROM-20PCK", the UPC code is 0-68488-02359-1. CDRecord (1.10) mainly reports these as:
ATIP start of lead out: 26100 (05:50/00)
Disk type: unknown
Manuf. index: 81
Manufacturer: ILLEGAL OLD CODE: Old Ritek Co.???
26100 sectors (x2048 bytes) should result in 534528xx bytes; however, after a seemingly sussessful burn, when I dd the resulting disc back to an ISO file I only get 51392512 bytes :-(
These Chinese produced discs in another Merangue 20 pack of business card sized CD-Rs also show up as: "Optical Disc Manufacturing Equipment" and "Multi Media Masters & Machinary SA", and ALL appear to have a 51392512 byte limit :-(
The few "Ritek Co." branded disks I have that did work were purchased seperately from a company which is now out of business.
I'm returning what I've left and begun to look for another supplier.
--
KnightFire
Posted by ke4nt1 on Oct. 02 2004,21:34
The company I work for has many thousands left in stock ..email me at ke4nt [at] damnsmalllinux [dot] org
Leave me your address or contact info,
and I'll see if our stock fits your needs ..
I'm not certain what brand of stock our vendor shipped us last time.
They ALL seem to come from Taiwan - even the Ritek ..
I'll find out Monday.. So far I have had no issues ...
From your other post, I'd almost think they were cut from regular CD stock !
73
ke4nt
Posted by John on Oct. 02 2004,21:53
All the business card CD-Rs I have ever used are actually slightly larger than 50MB, sometimes as much as 54MB.
Posted by ke4nt1 on Oct. 02 2004,22:27
Does that include the ones I sent ?( that is the media I still have in stock ? )
73
ke4nt
Posted by John on Oct. 02 2004,23:10
yep 
Posted by ke4nt1 on Oct. 02 2004,23:23
Posted by KnightFire on Oct. 02 2004,23:45
Hi ke4nt,Thanks! That's very much appreciated, I'll email you shortly. I just drove around town and the 49MB ones I'm getting from Staples (Business Depot) were all I could find. They actually look quite nice, with a white printable/writable surface and appear to be true business card CD-Rs and not regular CD-Rs cut to shape.
FYI,
I work part-time in the electronics department at a Wal-Mart and when I meet an "intelligent" Windows user I open my wallet and give them whichever version of DSL disc I have - so far I've given out about 11 DSL discs :-)
PS
I can't seem to burn at anything less than 4x via cdrecord (1.10) even if I specify otherwise - comments?
--
Peace and Long Life,
KnightFire
Posted by KnightFire on Oct. 03 2004,03:29
Hi,Shouldn't:
dd if=/dev/cdrom of=dsl.iso
work, to produce a file which I can check against the md5sum?
Because it doesn't seem to be working for me with the DSL iso's I'm burning... even to 700MB CD-Rs :-(
And my system seems stuck on trying to read the disc at the 51392512 byte point - I'm unable to stop the dd process or "forceably" eject the disc.
--
KnightFire
Posted by KnightFire on Oct. 03 2004,03:42
Hi,I'm stumped... on a P3 all my "51392512 byte" CD-Rs appear to boot fine (I'm using FireFox via DSL 0.8.2 to write this)... why can't my laptop booting from a floppy see them then?
And why is dd "failing" on me? :-(
--
KnightFire
Posted by cbagger01 on Oct. 03 2004,20:59
Try using the "dd" command on your P3 box. Maybe your laptop's CDROM drive is the culprit.
Posted by KnightFire on Oct. 06 2004,06:51
Hi,That was on my P3 :-/
Anyhow... I finally managed to get DSL 0.8.2 installed on my old IBM laptop! I finally smarten'ed up and burned it to regular 700MB CD-R! The dd test is still failing, and my business card sized CD-Rs only hold 49MB... but that's beside the point now... I'm happy to have gotten this far.
Now... to read up on why I can't get video the way I want :-( Any nice icons for an 8 bit display?
--
KnightFire
Posted by ke4nt1 on Oct. 06 2004,11:47
What is the model of your IBM laptop ?And does the 700MB cdr work now on the P3 as well ?
My IBM laptop does not like the mini cdrs either ...
73
ke4nt