DVD and CD format's

  BAC1-11 22:17 06 Jan 2004
Locked

What is the difference and use of CD-R and CD+R and DVD+R and DVD-R, and what about DVD-RAM

  howard60 22:29 06 Jan 2004

cd's can be written as cd-r which is written once and cannot be changed. cd-rw can be written many times erased and written again. With dvd they also have r and rw in addition the standard has not settled down yet and we have 2 or 3 types similar to the old VHS and betamax.

  BAC1-11 23:47 06 Jan 2004

Howard,

Thanks, but that doesn't answer what the PLUS/MINUS means in CD+R, DVD+R, CD-R & DVD-R. What is their significance? DVD-RAM?

  leo49 23:51 06 Jan 2004

There's CDR[burn once],CDRW[reusable] No CD+R.

DVD-R is one format

DVD+R another format

DVD-RAM a third format

At the moment the + and - formats seem to be slugging it out to see which will become THE standard format.

  leo49 23:55 06 Jan 2004

PS there are also reusable DVD in each of the 2 main formats ie DVD-RW and DVD+RW.

  leo49 02:08 07 Jan 2004

The CD format situation is settled on one format.
Blank write-once discs are referred to as CDR and CD-R but they refer to the same thing.[In fact CD-R may well be the correct technical term,but the - is a hyphen and doesn't denote a different format as it does with DVD media.]

  Jester2K 07:51 07 Jan 2004

CD-R = CD Recordable (once only)
CD-RW = CD Rewritable (Use many times)

No such thing as a CD+R

Do not confuse the significance of the + and - in DVD-R and DVD+R, with the - in CD-R and CD-RW. In CD-R and CD-RW the - means nothing. It just separates the CD bit from the R or RW bit. In fact sometimes the are just called CDR or CDRW (no -),

DVD Media is different however the - or + bit DOES mean something...

In DVD-R and DVD+R the + or - signifies the format used by the disk. Bit like the difference between Beta-Max and VHS (or tape and CD if you're not old enough for that) It could have been called "DVDR Super" and "DVDR Excellent" or "DVDR Fred" and "DVDR Mandy". The + and - just signifies the format used by the disk. Just change the R on the end to RW for the re-writable versions.

DVD-RAM is a third format.

DVD_RAM was the first format i believe. Then DVD-and DVD+ where fighting it out for the "de facto" format. But as this is far from being resolved both formats are not commonly supported by new DVD recorders. DVD-RAM seems to be making a bit of a come back too...

  Jester2K 07:53 07 Jan 2004

DVD-RAM was the first format i believe. Then DVD-and DVD+ where fighting it out to become the "de facto" format. But as this is far from being resolved both formats are NOW commonly supported by new DVD recorders.

DVD-RAM seems to be making a bit of a come back too...

  chris05 08:20 07 Jan 2004

If you are still not sure have a look here

click here

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