ésto me sucede:

I 12:09:12 Operation Started!
I 12:09:12 Source File: D:\ISOS\24S04_D1.MDS
I 12:09:12 Source File Sectors: 2.270.592 (MODE1/2048)
I 12:09:12 Source File Size: 4.650.172.416 bytes
I 12:09:12 Source File Application Identifier: NERO BURNING ROM
I 12:09:12 Source File Implementation Identifier: Nero
I 12:09:12 Destination Device: [0:2:0] SONY DVD RW DW-Q120A PYS3 (E (ATA)
I 12:09:12 Destination Media Type: DVD-R (Disc ID: MBI 01RG40) (Speeds: 6x, 8x, 12x, 16x)
I 12:09:12 Destination Media Sectors: 2.297.888
I 12:09:12 Write Mode: DVD
I 12:09:12 Write Type: SAO
I 12:09:12 Write Speed: 8x
I 12:09:12 Link Size: Auto
I 12:09:12 Test Mode: No
I 12:09:12 BURN-Proof: Enabled
I 12:09:12 Filling Buffer...
I 12:09:21 Writing LeadIn...
I 12:10:25 Writing Image...
I 12:20:05 Synchronising Cache...
I 12:20:24 Operation Successfully Completed! - Duration: 00:11:12
I 12:20:24 Average Write Rate: 7.843 KB/s (5.7x) - Maximum Write Rate: 8.406 KB/s (6.1x)

Grabador DVD (SONY DVD RW DW-Q120A PYS3): secundary master
HD (Samsung 30gb 5400 rpm): primary master