Media Identification Code
Encyclopedia
The Media IDentification code (MID) is used on DVD-R
, DVD+R
and DVD-RAM
discs to identify the manufacturer and to assist the DVD burner to select the best write strategy for the inserted media. The technology is inherited from the ATIP code used on CD-R
discs.
If the DVD burner recognizes the discs it means that the disc has been tested by the drive manufacturer to achieve the best possible burn using an optimal write strategy. The strategy is stored in the firmware
. Writing to a disc with no MID code or a code that is not recognized can result in inaccurate recording and data read-back problems.
installed by default, which provides a command to display the media data:
DVD-R
DVD-R is a DVD recordable format. A DVD-R typically has a storage capacity of 4.71 GB. Pioneer has also developed an 8.5 GB dual layer version, DVD-R DL, which appeared on the market in 2005....
, DVD+R
DVD+R
DVD+R is part of optical disc recording technologies. It is a format for optical disc data storage that utilizes digital recording. It is similar to, but incompatible with, the older DVD-R standard...
and DVD-RAM
DVD-RAM
DVD-RAM is a disc specification presented in 1996 by the DVD Forum, which specifies rewritable DVD-RAM media and the appropriate DVD writers. DVD-RAM media have been used in computers as well as camcorders and personal video recorders since 1998.-Design:DVD-RAM is one of three competing...
discs to identify the manufacturer and to assist the DVD burner to select the best write strategy for the inserted media. The technology is inherited from the ATIP code used on CD-R
CD-R
A CD-R is a variation of the Compact Disc invented by Philips and Sony. CD-R is a Write Once Read Many optical medium, though the whole disk does not have to be entirely written in the same session....
discs.
If the DVD burner recognizes the discs it means that the disc has been tested by the drive manufacturer to achieve the best possible burn using an optimal write strategy. The strategy is stored in the firmware
Firmware
In electronic systems and computing, firmware is a term often used to denote the fixed, usually rather small, programs and/or data structures that internally control various electronic devices...
. Writing to a disc with no MID code or a code that is not recognized can result in inaccurate recording and data read-back problems.
With Windows
- install DVDInfoPro by Nic Wilson (full 14 day trial available without any adverts)
- install DVDIdentifier by Kris Schoofs (freeware)
With Linux
Ubuntu and other Linux systems have dvd+rw-toolsDvd+rw-tools
dvd+rw-tools is a collection of open source computer programs that are popular DVD burning tools for Linux, FreeBSD, Windows and Mac OS X. dvd+rw-tools does not burn CDs....
installed by default, which provides a command to display the media data:
$ dvd+rw-mediainfo /dev/scd1
INQUIRY: [HL-DT-ST][DVDRAM GSA-4083N][1.00]
GET [CURRENT] CONFIGURATION:
Mounted Media: 14h, DVD-RW Sequential
Media ID: TDK502sakuM3
Current Write Speed: 2.0x1385=2770KB/s
Write Speed #0: 2.0x1385=2770KB/s
GET [CURRENT] PERFORMANCE:
Write Performance: 2.0x1385=2770KB/s@[0 -> 2254431]
Speed Descriptor#0: 02/2254431 R@3.3x1385=4584KB/s W@2.0x1385=2770KB/s
READ DVD STRUCTURE[#10h]:
Media Book Type: 00h, DVD-ROM book [revision 0]
Legacy lead-out at: 2298496*2KB=4707319808
READ DVD STRUCTURE[#0h]:
Media Book Type: 32h, DVD-RW book [revision 2]
Last border-out at: 2045*2KB=4188160
READ DISC INFORMATION:
Disc status: complete
Number of Sessions: 2
State of Last Session: reserved/damaged
Number of Tracks: 1
READ FORMAT CAPACITIES:
formatted: 2254432*2048=4617076736
00h(800): 2297888*2048=4706074624
10h(10): 2297888*2048=4706074624
15h(10): 2297888*2048=4706074624