Cybercom 4931: +RW supported, + R not ?!

[yungoso]

As tested, a Cybercom 4931 dvd-player reads a dvd-video burned on a +RW-disc and -R disc: but not on a +R disc.

A firmware update is not available for the Cybercom (which seems to a Medion 4560, which is in fact produced by Oritron, ...).

I find it rather strange that a +RW is no problem, but a +R isn't: does anyone have any idea what the difference may be between those two ?

The +R(W) consortium is saying: 'A DVD+R/+RW video recorder will always record DVD+R discs with DVD-ROM bitsettings, for maximum compatibility.'

So what might be the difference and a solution in order to use a +R ?

P.S.
Changing the bitstteing seems no solution either, as I'm using a NEC ND1300A:"For now, the tools (to change the bitsetting) will not work with some drives, particularly if they are not based on a Ricoh engine, such as the drives build by NEC."

[RabidDog]

I read somewhere else about the type of dye used in various media and for some strange technical reason (reflectivity) RW media are generally more compatible with stuff ...power......weak........cannot continue....shutdown imminent........

[yungoso]

Normal CDs can not be modified -- they are read-only devices. A CD-R disc needs to allow the drive to write data onto the disc. For a CD-R disk to work, there must be a way for a laser to create a non-reflective area on the disc.
A CD-R disc therefore has an extra layer that the laser can modify. This extra layer is a greenish dye. In a normal CD, you have a plastic substrate covered with a reflective aluminum or gold layer. In a CD-R, you have a plastic substrate, a dye layer and a reflective gold layer. On a new CD-R disc, the entire surface of the disc is reflective -- the laser can shine through the dye and reflect off the gold layer.

Dye seems not to be an issue concerning the difference ...

(as long as a re-boot is possible)

[tompika]

I find it rather strange that a +RW is no problem, but a +R isn't: does anyone have any idea what the difference may be between those two ?

DVD+RW came out a year before DVD+R. Your player's firmware was created between them.

Whats the real question?

[yungoso]

My real question, as written:

So what might be the difference and a solution in order to use a +R ?

Ok: the firmware was created in between and an upgrade is not possible.
Thanks.

So, apparently, it can be concluded that there's no way that I can burn a +R in a way that the DVD-player treats it like a +RW (like the mentionned bitsetting-option).

[tompika]

The Nec ND1300 is a dual format drive is it not?

Why would you keep pushing +R when as you said the player supports -R that you are able to burn?

[yungoso]

Answering a question with a question might be a way to say: I don't have an answer.

OK: just say so.

Not that I'm pushing +R, as you are suggesting, I simply do see a better availability of (good) +R-discs ... So if there is a possibility, I would prefer to use them.

Wondering who is pushing things.