http://debianws.lexgopc.com/wiki143/index.php?action=history&feed=atom&title=Media_Identification_CodeMedia Identification Code - Revision history2026-05-04T22:37:17ZRevision history for this page on the wikiMediaWiki 1.43.1http://debianws.lexgopc.com/wiki143/index.php?title=Media_Identification_Code&diff=1517670&oldid=previmported>Frap: /* With Linux */2025-06-04T21:32:41Z<p><span class="autocomment">With Linux</span></p>
<p><b>New page</b></p><div>{{for|the similar concept on CD-R and CD-RW media|Absolute Time in Pregroove}}<br />
{{Citations missing|date=August 2008}}<br />
<br />
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 recorder|DVD burner]] to select the best write strategy for the inserted media. The technology is inherited from the [[Absolute Time in Pregroove|ATIP]] code used on [[CD-R]] discs.<br />
<br />
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.{{Citation needed|date=August 2008}}<br />
<br />
== Displaying the MID ==<br />
The following programs can be used to display the contents of the MID<br />
<br />
=== With Windows ===<br />
* install [http://www.dvdinfopro.com/ DVDInfoPro] by Nic Wilson (full 14-day trial available without any adverts)<br />
* install [https://web.archive.org/web/20061004214453/http://dvd.identifier.cdfreaks.com/ DVDIdentifier] by Kris Schoofs (freeware)<br />
<br />
=== With Linux ===<br />
Ubuntu and other Linux systems have [[dvd+rw-tools]] installed by default, which provides a command to display the media data:<br />
<br />
<syntaxhighlight lang="console"><br />
$ dvd+rw-mediainfo /dev/scd1<br />
INQUIRY: [HL-DT-ST][DVDRAM GSA-4083N][1.00]<br />
GET [CURRENT] CONFIGURATION:<br />
Mounted Media: 14h, DVD-RW Sequential<br />
'''Media ID: TDK502sakuM3'''<br />
Current Write Speed: 2.0x1385=2770KB/s<br />
Write Speed #0: 2.0x1385=2770KB/s<br />
GET [CURRENT] PERFORMANCE:<br />
Write Performance: 2.0x1385=2770KB/s@[0 -> 2254431]<br />
Speed Descriptor#0: 02/2254431 R@3.3x1385=4584KB/s W@2.0x1385=2770KB/s<br />
READ DVD STRUCTURE[#10h]:<br />
Media Book Type: 00h, DVD-ROM book [revision 0]<br />
Legacy lead-out at: 2298496*2KB=4707319808<br />
READ DVD STRUCTURE[#0h]:<br />
Media Book Type: 32h, DVD-RW book [revision 2]<br />
Last border-out at: 2045*2KB=4188160<br />
READ DISC INFORMATION:<br />
Disc status: complete<br />
Number of Sessions: 2<br />
State of Last Session: reserved/damaged<br />
Number of Tracks: 1<br />
READ FORMAT CAPACITIES:<br />
formatted: 2254432*2048=4617076736<br />
00h(800): 2297888*2048=4706074624<br />
10h(10): 2297888*2048=4706074624<br />
15h(10): 2297888*2048=4706074624<br />
</syntaxhighlight><br />
<br />
=== With Mac OS X ===<br />
drutil status<br />
<br />
==See also==<br />
* [[Book type]]<br />
* [[Burst cutting area]]<br />
* [[Absolute Time in Pregroove]]<br />
* [[Wobble frequency]]<br />
* [[Content ID]]<br />
<br />
==External links==<br />
* [https://archive.today/20121217164145/https://www.ip.philips.com/licensing/services_and_ordering/Verification/dvdr_dvdrw/info_write_strategies_1098.html Write Strategies for high performance DVD+R/RW]<br />
* [http://dvdidentifier.cdfreaks.com DVD Identifier] (a utility software program for Microsoft Windows)<br />
<br />
[[Category:DVD]]<br />
<br />
{{Compu-storage-stub}}</div>imported>Frap