Guild Wars 2

I am randomly CTDing anywhere from 2 minutes after I start playing to 2 hours after I start playing. This is what I get as my error message though Im not sure what to make of it.

—> Crash <—
Fatal Error: Fatal disk-error (23) on read,
App: Gw2.exe
Pid: 3592
Cmdline:
BaseAddr: 00400000
ProgramId: 101
Build: 15718
When: 2012-10-15T23:03:21Z 2012-10-15T19:03:21-04:00
Uptime: 0 days 0:02:40
Flags: 0

—> System <—
Processors: 2 [GenuineIntel:6:15:6]
OSVersion: Windows 6.1 (64 bit)

—> System Memory <—
Physical: 1409MB/ 3263MB 43%
Paged: 3770MB/ 6524MB 57%
Virtual: 2249MB/ 4095MB 54%
Load: 56%
CommitTotal: 2754MB
CommitLimit: 6524MB
CommitPeak: 3360MB
SystemCache: 1393MB
HandleCount: 14636
ProcessCount: 42
ThreadCount: 560

—> Process Memory <—
Private: 1468MB
WorkingSet: 1082MB
PeakWorkingSet: 1096MB
PageFaults: 613041

—> Error Logs <—
Mem Arena ‘Transient’ capacity exceeded. Attempted alloc category: ‘UI Textures’ Size: 262192
Texture missing mip chain: 0×00c7bd
Model ‘0×006e1b’: Can’t unlink child ‘0×00e103’ from parent bone ‘headgear’, there’s no bone with that name.
Model ‘0×006e1b’: Missing anim or fallbacks: uamtumble
Disk read failed with error 23 (incomplete): file ‘C:\Program Files (x86)\Guild Wars 2\Gw2.dat’
Disk read failed (23): file ‘C:\Program Files (x86)\Guild Wars 2\Gw2.dat’