I'm getting a lot of errors during burning. It slows burning down quite some bit. This is the (part of) the log:
I 15:07:33 Source File Sectors: 2.272.480 (MODE1/2048)
I 15:07:33 Source File Size: 4.654.039.040 bytes
I 15:07:33 Source File Volume Identifier: NIEUW
I 15:07:33 Source File Application Identifier: NERO BURNING ROM
I 15:07:33 Source File Implementation Identifier: Nero
I 15:07:33 Source File File System(s): ISO9660; UDF (1.02)
I 15:07:33 Destination Device: [1:0:0] _NEC DVD_RW ND-3550A 1.06 (E:) (ATA)
I 15:07:33 Destination Media Type: DVD+R (Disc ID: MCC-004-00) (Speeds: 2,4x; 4x; 6x; 8x; 12x; 16x)
I 15:07:33 Destination Media Sectors: 2.295.104
I 15:07:33 Write Mode: DVD
I 15:07:33 Write Type: DAO
I 15:07:33 Write Speed: MAX
I 15:07:33 Link Size: Auto
I 15:07:33 Test Mode: No
I 15:07:33 BURN-Proof: Enabled
I 15:07:34 Filling Buffer... (20 MB)
I 15:07:37 Writing LeadIn...
I 15:08:02 Writing Image... (LBA: 0 - 2272479)
W 15:08:34 Waiting for buffers to recover...
W 15:09:06 Waiting for hard disk activity to reach threshold level...
I 15:09:07 Writing Image...
W 15:09:51 Waiting for buffers to recover...
W 15:09:54 Waiting for hard disk activity to reach threshold level...
I 15:09:55 Writing Image...
W 15:10:16 Waiting for buffers to recover...
W 15:10:19 Waiting for hard disk activity to reach threshold level...
I 15:10:20 Writing Image...
and this keeps repeting until the burn is done