whats the difference?

brian · 12-20-2007, 01:25 AM

ok, what is the difference between dvd-ram and dvd-rw? i know it lasts longer (already read wikipedia) but like what uses are there, it seems more expensive then just buying more dvd-rw.

[-0MEGA-] · 12-20-2007, 01:47 AM

Advantages of DVD-RAM

Long life — without physical damage, data is retained for an estimated 30 years minimum. Ideal for video evidence recording in CCTV applications amongst many other uses.
Can be rewritten over 100,000 times (DVD±RW can be rewritten approx. 1,000 times). Faster DVD-RAMs support fewer rewrites (3x speed: 100,000, 5x speed: 10,000)[citation needed], but still more than DVD+RW or DVD-RW. (These are theoretical numbers. In practice they could be smaller depending on the drive, the treatment of the disc and the file system.)
Reliable writing of discs. Verification done in hardware by the drive, so post-write verification by software is unnecessary. Software verification is disabled in all current DVD Video Recorders.
Disc defect management safeguards data, though no optical phase change media is suitable for long term archiving.
DVD-burning software may not be required — discs can be used and accessed like a removable hard disk. Mac OS (8.6 or later) supports DVD-RAM directly. Windows XP supports DVD-RAM directly only for FAT32-formatted discs. Windows Vista is able to write to both FAT32- and UDF-formatted DVD-RAM discs right from within Windows Explorer. Device drivers or other software are needed for earlier versions of Windows or if one wants to use the arguably better UDF format rather than FAT32.
Arguably easier to use than other DVD technology.
Very fast access of smaller files on the disc.
2 KB disc block size wastes less space when writing small files.
Finalization not necessary. This is an attribute of the VR mode recording mode and is available on other media such as DVD-RW.
Media available with or without protective cartridges.
In video recorders, DVD-RAM can be written to and watched (even separate programs) at the same time, much like TiVo. This is an attribute of the VR mode recording mode and is available on other media such as DVD-RW, though this is only possible at the lower bit rates.
Supports time slip recording and recording without border in/out writing. This is an attribute of the VR mode recording mode and is available on other media such as DVD-RW, though again only at the lower bit rates.
Supported by some high end security digital video recorders, such as the Tecton Darlex, as a secure export medium. 30 year retention makes this an ideal format for evidence.
Holds more data when using Double Sided discs than dual-layer DVD+RW and DVD-RW, 9.4GB for DVD-RAM vs 8.5GB for DVD+RW DL and DVD-RW DL.

ramodkk · 12-20-2007, 01:58 AM

I didn't know that! So you can get double sided DVD's like some DVD movies?? That's cool!

brian · 12-20-2007, 02:12 AM

ok, i guess copying it works,... but how does it work, i mean it seems like a laser cant really do that. makes it seem smart. and why is it called ram? and where can i get one

brian · 12-20-2007, 04:17 AM

yeah i just serarched, they cant be found in any story localy

why is that? are they new or just not popular and if so why

patrickv · 12-20-2007, 10:16 AM

The writer on my dell is a ram drive (philips) but Omega put forward some very good points which i didn't even know

[-0MEGA-] · 12-20-2007, 11:59 AM

Quote:

Originally Posted by patrickv

The writer on my dell is a ram drive (philips) but Omega put forward some very good points which i didn't even know

Wikipedia FTW!

Kazoon · 12-25-2007, 08:07 AM

Last longer? I bought a 5 pack of Memorex DVD-rw's about 3 years ago and burn movies for my kids to watch just about evey night and they all still work great!

[-0MEGA-] · 12-25-2007, 01:00 PM

Quote:

Originally Posted by Kazoon

Last longer? I bought a 5 pack of Memorex DVD-rw's about 3 years ago and burn movies for my kids to watch just about evey night and they all still work great!

365 x 3 = 1,095 uses (if you really do burn one every night)

Average lifespan of a DVD+/-RW = 1,000

patrickv · 12-25-2007, 03:10 PM

Quote:

Originally Posted by Kazoon

Last longer? I bought a 5 pack of Memorex DVD-rw's about 3 years ago and burn movies for my kids to watch just about evey night and they all still work great!

in a day i burn approx 4-5 movies, most dvds. (yeah at work

)
i haven't experience any thing wrong with my writer yet

12-20-2007, 01:25 AM	#1 (permalink)
brian Diamond Member Join Date: Jun 2007 Location: California Age: 16 Posts: 3,720	whats the difference? ok, what is the difference between dvd-ram and dvd-rw? i know it lasts longer (already read wikipedia) but like what uses are there, it seems more expensive then just buying more dvd-rw. __________________ formerly brianmay27 Main laptop: hp dv9005us \| turion 64 X2 1.6 ghz \| 3 GB ram \| Vista ultimate \| 240 GB HD First build: pentium e2160 3.2 GHz \| gigabyte GA-P35-DS3L \| 2.5 GB ram \| 160GB HD If you can see this, you have WAY TOO much time on your hand. Or you're a mod going through my sig. But if you do, copy and past this in your sig.

12-20-2007, 01:47 AM	#2 (permalink)
[-0MEGA-] Diamond Member Join Date: Nov 2004 Location: Concord, NH Age: 19 Posts: 27,069	Advantages of DVD-RAM Long life — without physical damage, data is retained for an estimated 30 years minimum. Ideal for video evidence recording in CCTV applications amongst many other uses. Can be rewritten over 100,000 times (DVD±RW can be rewritten approx. 1,000 times). Faster DVD-RAMs support fewer rewrites (3x speed: 100,000, 5x speed: 10,000)[citation needed], but still more than DVD+RW or DVD-RW. (These are theoretical numbers. In practice they could be smaller depending on the drive, the treatment of the disc and the file system.) Reliable writing of discs. Verification done in hardware by the drive, so post-write verification by software is unnecessary. Software verification is disabled in all current DVD Video Recorders. Disc defect management safeguards data, though no optical phase change media is suitable for long term archiving. DVD-burning software may not be required — discs can be used and accessed like a removable hard disk. Mac OS (8.6 or later) supports DVD-RAM directly. Windows XP supports DVD-RAM directly only for FAT32-formatted discs. Windows Vista is able to write to both FAT32- and UDF-formatted DVD-RAM discs right from within Windows Explorer. Device drivers or other software are needed for earlier versions of Windows or if one wants to use the arguably better UDF format rather than FAT32. Arguably easier to use than other DVD technology. Very fast access of smaller files on the disc. 2 KB disc block size wastes less space when writing small files. Finalization not necessary. This is an attribute of the VR mode recording mode and is available on other media such as DVD-RW. Media available with or without protective cartridges. In video recorders, DVD-RAM can be written to and watched (even separate programs) at the same time, much like TiVo. This is an attribute of the VR mode recording mode and is available on other media such as DVD-RW, though this is only possible at the lower bit rates. Supports time slip recording and recording without border in/out writing. This is an attribute of the VR mode recording mode and is available on other media such as DVD-RW, though again only at the lower bit rates. Supported by some high end security digital video recorders, such as the Tecton Darlex, as a secure export medium. 30 year retention makes this an ideal format for evidence. Holds more data when using Double Sided discs than dual-layer DVD+RW and DVD-RW, 9.4GB for DVD-RAM vs 8.5GB for DVD+RW DL and DVD-RW DL. __________________ Desktop // Laptop Core 2 Quad Q9550 @ 4.0GHz // Core 2 Duo P8400 2.26GHz Asus Rampage Formula X48 // Intel PM45 ATI 4870X2 2GB GDDR5 // 512MB GDDR3 9800M GTS 4GB (2x 2GB) DDR2 940 // 4GB DDR3 800 750GB SATAII w/32MB // 200GB SATAII 7200RPM Creative SB X-Fi Titanium Fatal1ty SilverStone 750W +12V@60A 3DMark06: 21391 // 9179

12-20-2007, 01:58 AM	#3 (permalink)
ramodkk Diamond Member Join Date: Jun 2006 Location: There > Age: 16 Posts: 4,524	I didn't know that! So you can get double sided DVD's like some DVD movies?? That's cool! __________________ "If at first you don't succeed, you're not Chuck Norris" E2160 @ 2.7GHz AC Freezer 7 Pro Gigabyte P35-DS3L 2GB BallistiX Tracers DDR2-1000 Sapphire HD3870 Rosewill RD500 500W Rosewill Modded Case 3DMark06: 10,017 Winner of Photo Tourney: What were they thinking? & Grass

12-20-2007, 02:12 AM	#4 (permalink)
brian Diamond Member Join Date: Jun 2007 Location: California Age: 16 Posts: 3,720	ok, i guess copying it works,... but how does it work, i mean it seems like a laser cant really do that. makes it seem smart. and why is it called ram? and where can i get one __________________ formerly brianmay27 Main laptop: hp dv9005us \| turion 64 X2 1.6 ghz \| 3 GB ram \| Vista ultimate \| 240 GB HD First build: pentium e2160 3.2 GHz \| gigabyte GA-P35-DS3L \| 2.5 GB ram \| 160GB HD If you can see this, you have WAY TOO much time on your hand. Or you're a mod going through my sig. But if you do, copy and past this in your sig.

12-20-2007, 04:17 AM	#5 (permalink)
brian Diamond Member Join Date: Jun 2007 Location: California Age: 16 Posts: 3,720	yeah i just serarched, they cant be found in any story localy why is that? are they new or just not popular and if so why __________________ formerly brianmay27 Main laptop: hp dv9005us \| turion 64 X2 1.6 ghz \| 3 GB ram \| Vista ultimate \| 240 GB HD First build: pentium e2160 3.2 GHz \| gigabyte GA-P35-DS3L \| 2.5 GB ram \| 160GB HD If you can see this, you have WAY TOO much time on your hand. Or you're a mod going through my sig. But if you do, copy and past this in your sig.

12-20-2007, 10:16 AM	#6 (permalink)
patrickv Diamond Member Join Date: Jul 2006 Location: Soul Chamber Posts: 5,470	The writer on my dell is a ram drive (philips) but Omega put forward some very good points which i didn't even know __________________ Laptop: Thinkpad X60: Core2Duo T7200 @ 2Ghz,1GB DDR2,110GB SATA -winXP ProSP2 Work Desktop: Core Duo E2180 @ 2Ghz,1.5GB DDR2,240GB HD - XP PRO SP2 Home: Core Duo E2180 2Ghz,1.5GB DDR2,Nvidia GForce 6200TB,320 GB (2x160GB) -Dual boot - XP / OSX 10.5.2

12-25-2007, 08:07 AM	#8 (permalink)
Kazoon Gold Member Join Date: Sep 2006 Posts: 270	Last longer? I bought a 5 pack of Memorex DVD-rw's about 3 years ago and burn movies for my kids to watch just about evey night and they all still work great!

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