Originally posted by: kgatwork
This is the media code of the TDK 2x DVD-R's I picked up today also made in Tawain:
Media Information
Region information N/A not a DVD-VIDEO
Media code/Manufacturer ID RITEKG04
Format Capacity Not Formatted
Free Blocks 411107328
Free Capacity 4.38GB(4.71GB)
Book Type DVD-R
Media Type DVD-R
Media Id Code Speed 4.0x 5540KBps
Available Write Descriptor CLV 4.0x 5540KBps
Available Write Descriptor CLV 2.0x 2770KBps
Write Strategy Speed 4.0x 5540KBps
2x Speed OPC beta 08
2x Speed OPC power 12
2x Write Strategy field 1 11 86 67 80
2x Write Strategy field 2 88 80 00 00 00 00
4x Speed OPC beta 05
4x Speed OPC power 1B
4x Write Strategy field 1 0E 10 08 09
4x Write Strategy field 2 97 06 0D 0B
4x Write Strategy field 3 00 00 00 00
4x Speed OPC beta multi-pulse 04
4x Speed OPC power multi-pulse 1D
4x Write Strategy field 4 18 A8 88 85
4x Write Strategy field 5 89 AC 88 80 00 00
4x Write Strategy field 6 00 00 D0 00 00
Data area starting sector 30000h
Linear Density 0.267um/bit
Track Density 0.74um/track
Number of Layers 1
and for the DVD+R:
Media Information
Region information N/A not a DVD-VIDEO
Media code/Manufacturer ID RICOHJPNR01
Format Capacity Not Formatted
Free Blocks 405405696
Free Capacity 4.38GB(4.70GB)
Book Type DVD+R
Media Type DVD+R
Media Id Code Speed 4.0x 5540KBps
Available Write Descriptor CLV 8.0x 11080KBps
Available Write Descriptor CLV 4.0x 5540KBps
Available Write Descriptor CLV 2.4x 3324KBps
Data area starting sector 30000h
Linear Density 0.267um/bit
Track Density 0.74um/track
Number of Layers 1
Seems to be no limit on how many you can purchase