So, I bought that pioneer external burner as (you) suggested. And, it has been a charm the last week. Now I'm getting internal errors.
LOG
10:09:12 ImgBurn Version 2.5.0.0 started!
I 10:09:12 Microsoft Windows XP Home Edition (5.1, Build 2600 : Service Pack 3)
I 10:09:12 Total Physical Memory: 1,038,316 KB - Available: 732,108 KB
I 10:09:12 Initialising SPTI...
I 10:09:12 Searching for SCSI / ATAPI devices...
I 10:09:12 Found 1 DVD