Request you to please help.
Model : Sony VAIO N160G
following is the log for debugwiz :
=================================================
Use !analyze -v to get detailed debugging information.

BugCheck 1A, {41284, 76b46001, 0, c0883000}

Probably caused by : memory_corruption ( nt!MiLocateWsle+c1 )

Followup: MachineOwner
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0: kd> !analyze -v;r;kv;lmtn;.logclose;q
************************************************** *****************************
* *
* Bugcheck Analysis *
* *
************************************************** *****************************

MEMORY_MANAGEMENT (1a)
# Any other values for parameter 1 must be individually examined.
Arguments:
Arg1: 00041284, A PTE or the working set list is corrupt.
Arg2: 76b46001
Arg3: 00000000
Arg4: c0883000

Debugging Details:
------------------


BUGCHECK_STR: 0x1a_41284

CUSTOMER_CRASH_COUNT: 1

DEFAULT_BUCKET_ID: DRIVER_FAULT

PROCESS_NAME: imapi.exe

LAST_CONTROL_TRANSFER: from 80522709 to 804f9f13

STACK_TEXT:
a966eb10 80522709 0000001a 00041284 76b46001 nt!KeBugCheckEx+0x1b
a966eb48 80522f8f 00000000 76b46000 c0601da8 nt!MiLocateWsle+0xc1
a966eb7c 805233a8 c03b5a30 76b46000 00000000 nt!MiDeletePte+0x1fd
a966ec44 80519639 e195e418 76b6cfff 00000000 nt!MiDeleteVirtualAddresses+0x164
a966ecf4 805b18f1 854b4858 854dd078 a966ed64 nt!MiRemoveMappedView+0x237
a966ed38 805b19e0 854f0078 854dd008 00000000 nt!MiUnmapViewOfSection+0x12b
a966ed54 805409ac ffffffff 854b4858 0007eb8c nt!NtUnmapViewOfSection+0x54
a966ed54 7c90eb94 ffffffff 854b4858 0007eb8c nt!KiFastCallEntry+0xfc
WARNING: Frame IP not in any known module. Following frames may be wrong.
0007eb8c 00000000 00000000 00000000 00000000 0x7c90eb94


STACK_COMMAND: kb

FOLLOWUP_IP:
nt!MiLocateWsle+c1
80522709 2b45f0 sub eax,dword ptr [ebp-10h]

SYMBOL_STACK_INDEX: 1

FOLLOWUP_NAME: MachineOwner

MODULE_NAME: nt

DEBUG_FLR_IMAGE_TIMESTAMP: 45880f61

SYMBOL_NAME: nt!MiLocateWsle+c1

IMAGE_NAME: memory_corruption

FAILURE_BUCKET_ID: 0x1a_41284_nt!MiLocateWsle+c1

BUCKET_ID: 0x1a_41284_nt!MiLocateWsle+c1

Followup: MachineOwner
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=============================================

That error was triggered by your DVD/CD drive and is throwing a Memory Corruption fault.

Does this happen often? The above is most likely a hardware problem.

If this is a new laptop I would return it and demand a working machine.

If you want to try and deal with it yourself please post any future dumps as they are most telling in comparison to each other.