DVD writeable media
HI everybody, The message thread about DVD writers makes me think that there are many standards or types of writeable DVD media that not all drives can handle - is this true? Could somebody compare/contrast the different types? Thanks, Andy -- Andy Stewart, Founder Worcester Linux Users' Group Worcester, MA USA http://www.wlug.org
The message thread about DVD writers makes me think that there are many standards or types of writeable DVD media that not all drives can handle - is this true?
Yes, DVD-R, DVD-RW, DVD+R, DVD+RW, and DVD-RAM. Why share sales with a standard format when a company can make up its own DVD standard to sell and hope to take the market with?
Could somebody compare/contrast the different types?
Here's a good rundown on the different types: http://www.dvformat.com/2002/03_mar/features/dvd_standards.htm Brian J. Conway bconway@alum.wpi.edu "LINUX is obsolete" - Andrew S. Tanenbaum, creator of Minix - Jan 29, 1992
Andy Stewart wrote:
The message thread about DVD writers makes me think that there are many standards or types of writeable DVD media that not all drives can handle - is this true?
Could somebody compare/contrast the different types?
That PCWorld article I mentioned earlier in this thread has a nice table. The first step is to note that there are three pairs: DVD-R and DVD-RW DVD+R and DVD+RW CD-R and CD-RW plus one single, DVD-RAM which (so far) has no RW sibling. (I include CD's to emphasize the pattern) That article also has a table: Type Can be written to by drives of type DVD-RW DVD+RW DVD-RW/+RW DVD-RAM/-R/-RW DVD-RAM/-R DVD-R yes no yes yes yes DVD+R no yes yes no no CD-R yes yes yes yes no DVD-RW yes no yes yes no DVD+RW no yes yes no no DVD-RAM no no no yes yes CD-RW yes yes yes yes no and with same rows: Capac Cost Cartrige? Quick Format Data verifn 4.7GB $4 no n/a no 4.7 5 no n/a no 700MB 1 no n/a no 4.7 6 no optional no 4.7 7 no yes no 4.7* 15 yes** n/a*** yes 700 1 no no no and still with same rows: Defct Mngmt Max Rewrites Seq/Rand Data/video? no n/a seq video no n/a seq video no n/a seq video & data no 1000 seq data yes**** 1000 seq data yes 100,000 random data no 1000 seq data * double sided gives 9.4 GB ** disks also available w/o cartridges on a spindle *** DVD-RAM disks are preformatted **** only on Mount Ranier writes which are not supported by most drives Hope the formatting survives! :-) doug
Date: Mon, 25 Nov 2002 15:20:42 -0500
From: doug waud
Robert L Krawitz wrote:
Date: Mon, 25 Nov 2002 15:20:42 -0500 From: doug waud
Type Can be written to by drives of type
DVD-RW DVD+RW DVD-RW/+RW DVD-RAM/-R/-RW DVD-RAM/-R
DVD-R yes no yes yes yes DVD-RW yes no yes yes no
Defct Mngmt Max Rewrites Seq/Rand Data/video?
no n/a seq video no 1000 seq data
Why is DVD-R listed as video only, and DVD-RW as data only?
-- Robert Krawitz
As I implied in my first posting I am just passing this info on; I am not including any thought. :-) Seriously, I can't tell from the article why this is the case. They do note that "DVD-RW format leaves disk formatting up to the software .... must perform a full disk format --- which can take an hour --- before you can start writing to the disk". Perhaps they feel this investment of time is beyond the attention span of those who watch TV. :-) I can also speculate that the ability to rewrite the DVD-RW may have tipped them in favor of it for data. Perhaps all that we are seeing is the problems that arise when you try to force data into a tabular format. :-) Take your pick/and-or make your own guess! doug
participants (4)
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Andy Stewart -
Brian J. Conway -
doug waud -
Robert L Krawitz