Here is the media code from dvdinfo

Media Information

Region information N/A not a DVD-VIDEO

Media code/Manufacturer ID TYG02

Format Capacity Blank Disc

Free Blocks 411107328

Free Capacity 4.38GB(4.71GB)

Book Type DVD-R

Media Type DVD-R

Manufacturer Rated Speed 8.0x 11080KBps

Available Write Descriptor CLV 8.0x 11080KBps

Available Write Descriptor CLV 4.0x 5540KBps

Write Strategy Speed 4.0x 5540KBps

2x Speed OPC beta 08

2x Speed OPC power 0E

2x Write Strategy field 1 11 87 78 80

2x Write Strategy field 2 88 80 00 00 00 00

4x Speed OPC beta 06

4x Speed OPC power 13

4x Write Strategy field 1 0D 10 0E 07

4x Write Strategy field 2 97 07 0D 0B

4x Write Strategy field 3 80 00 00 00

4x Speed OPC beta multi-pulse 06

4x Speed OPC power multi-pulse 18

4x Write Strategy field 4 17 85 78 75

4x Write Strategy field 5 D6 89 A8 92 01 20

4x Write Strategy field 6 10 00 00 00 00

Data area starting sector 30000h

Linear Density 0.267um/bit

Track Density 0.74um/track

Number of Layers 1

```
Complete Media Code
```

00000000 00 6A 00 00 01 40 C1 FD 9E D8 52 00 02 87 0D 10 .j…@…R…

00000010 66 78 80 00 03 54 59 47 30 32 00 00 04 00 00 00 fx…TYG02…

00000020 00 00 00 00 05 AA A2 22 22 20 02 00 06 08 0E 11 …"" …

Are these real or fake Tayon Yuden. They are made by digittex. Dvd-r 4.7gig 8x.

Thanks