Just tried another at 4x I got one error this time around 75%, and a few others later so it's still a decent number of errors. Like I said before I don't know if this is normal for xbox discs or what. I think I've made 3 coasters, which kinda sucks considering it's verbatim. Here's the log again if you need it. There's a time gap in the log just because I let it running for a bit and came back to it a few hours later. I tried burning a different img this time for your reference.
I 23:20:23 ImgBurn Version 2.4.2.0 started!
I 23:20:23 Microsoft Windows XP Professional (5.1, Build 2600 : Service Pack 2)
I 23:20:23 Total Physical Memory: 2,096,620 KB - Available: 1,356,372 KB
I 23:20:23 Initialising SPTI...
I 23:20:23 Searching for SCSI / ATAPI devices...
I 23:20:23 Found 1 DVD