dvd+r/-r manufacturer

[muppy]

Who are the manufacturer of dvd+r and -r? How can i identify them? A friend of mine say that sony, tdk and
philips, all manufactured by RICOH. Is this true?? How can i verify? Is ther a database of dvd+r and -r manufacturers?

[aviationwiz]

I believe TDK is made by Ricoh. I think that Phillips is made by Ricoh. I know that Sony is NOT made by Ricoh.

[jsl]

Check in DVDRHelp's media list.

[y2k103]

If that doesn't give ya what you want, check out this site.

http://www.dvdplusrw.org/pc/overview_next_gen.html

[jase]

Are we talking media here, or drives?

If drives, then of course the TDK and Sony are not Ricoh.

For media, the Ricoh discs are themselves made by Ritek (with a Ricoh stamper). The vast majority of +R media is Ritek (although CMC are catching up fast and I think recently took over).

Sony isn't Ricoh. IIRC these discs are made by Lead-Data

[Halc]

Jase,

how do you find out which company makes which disc, when the ATID (or ATIP for cd-r) info has been forged (or used under permission from another company)?

I've always wondered about this.

I'd like to get the secret decoder ring too :)

regards,
Halcyon

[jase]

In the case of under-permission use, these things are usually found out by insider-knowledge (contacts with distros etc), press-releases (for example it is known that Sony contract mainly to Lead-Data in Taiwan) or visual identification (Ricoh +R discs are quite obviously Ritek, and it is also generally known that Ricoh have subcontracted to Ritek for at least the last four years).

For fake-ID discs, it's guesswork, given that these manufacturers are obscure, or don't want to be caught again though, visual clues usually give the game away. Princo and Prodisc fake-TDK media is fairly obvious as these media types are fairly distinctive. The fake-Maxell media I've seen is a lot less obvious. I have a hunch that whoever made the fake-Maxell discs I tested also make "Longten" media now, but I can't be sure. I think there may also have been other brands.

One thing I'm a little confused over, is that in searches for Longten on the web, a number of people have referred to this Taiwanese company as "infamous" or "notorious", yet I've never seen any evidence to back this up. What's the beef on this company?

[Ruffrob]

Do a Google search on 'disc id software'. There is an app that can tell you what brand you are using,or if you use DVD Decrypter with a blank disc it can tell you what it is....

[myckee]

The way that you tell what media you have is by using this FREE software. This will tell you everything you ever wanted to know about your media and drives.

[dolphinius_rex]

I think the 2x Maxell media at www.blankmedia.ca is probably the "longtec" you described jase, since the price is rediculously low for Maxell branded media! plus they are silver on top only, which is rare (but not unknown) for Maxell.