The rarest/most obscure recordable medium

vbimport

#1405

I have one box from 2014 MKM DVD+R DL.


#1406

Why was the error rate so constant?


#1407

So many germans here.
Were optical discs marketed well in Germany more than other countries? (Conrad Electric store offers DVD-RAM and floppy disks.).


#1408

Does it say 680MB?
Isn’t it 650MB?


#1409

Yet another marketing term?


#1410

I have a few SPEER Conputertechnics DVD-R×4’s at home. I will find out MID and send photo.

Has anyone heard about SPEER?


#1411

Como? Looks like kids edition


#1412

Didn’t know that QPXtool exists for Windows too.
This Sony has no SUPREMAS?


#1413
Manufacturer Sample Media IDs Origin Formats Notes
Pioneer PVC001001, PVC001002, PVCW00 Japan DVD-R, DVD-RW PVC stopped making media in 2003 (4x era)

Read more: http://www.digitalfaq.com/reviews/dvd-media.htm#ixzz54vcI5Uve

My Pioneer DVD-RW 1x came with my Pioneer DVR-A04 burner in 2002.


#1414

When Pioneer stopped making CDs and DVDs, the price of optical discs plummeted, meaning that it wasn’t economically feasible for them to continue production due to higher costs associated with production in Japan.


#1415

650 MB = 681,574,400 bytes.


#1416

So that means 681 MiB.

http://en.wikipedia.org/wiki/File_sizes


#1417

Nope

681.574.400 MB = 650.000.000 MiB

I have to pay attention, german and english language uses . and , different


#1418

Regarding the difference between binary MB and decimal MB, tell the hard drive manufacturers. Of course they’d want to make their drives sound like they have more space than they actually have!!


#1419

Manufacturers of Optical disc, flash memory do it also :wink:

At least since DVD, CD-R mostly write the real capacity


#1420

Even the “better” manufacturers of CD-Rs “mislabelled” their products, with the most famous (in my mind) being the early (1995/1996 vintage) Philips “Professional” CD-Rs labelled as “74min/700mb”, produced by Taiyo Yuden and Kodak.


#1421

Could be, I don´t have one of these exotic old media

Maybe some manufacturers also used the Mode 2 capacity?

When I start with it the capacity had the correct numbers


#1422

The only CD-R in a pack of 11 JCs?
Not really silver / green, the dye is phthalocyanine.
ATIP 97m27s19f (Plasmon)


#1423

The phthalocyanine dye used on CD-Rs is a very light green colour. This can clearly be seen if you peel the reflective layer off (don’t try this with a disc that you wish to keep!!!) and look through the disc with good light in the background.


#1424

That’s the case with this CD-R.

But there are also phthalocyanine CD-Rs (seen at Ritek, MBI, MPO, SONY, FTI) where the dye was made absolutely colorless. How does it work?