unity crashes by memory access violation

The program randomly gets memory crashes and becomes unresponsive when the Unity PC Build switch to a particular scene.

That scene loads a ogv file which is stored in Local Storage via WWW Class and I suspect that this is the cause of the issue.

The followings are the error.log for two recent incidents.

1. error.log Unity Player [version: Unity 5.3.4p5_83b1f50dd5b8]

[FILE_NAME].exe caused an Access Violation (0xc0000005) in module [FILE_NAME].exe at 0033:3fae7714.

Error occurred at 2016-06-24_200936. C:[FILE_NAME].exe, run by Administrator. 36% memory in use. 7630 MB physical memory [4850 MB free]. 15258 MB paging file [12082 MB free]. 8388608 MB user address space [8387543 MB free]. Write to location 3a987000 caused an access violation.

Context: RDI: 0x025ef7a0 RSI: 0x0012c000 RAX: 0x00000002 RBX: 0x0051f540 RCX: 0x3a987020 RDX: 0x0026ffa0 RIP: 0x3fae7714 RBP: 0x00000000 SegCs: 0x00000033 EFlags: 0x00010202 RSP: 0x3b10f888 SegSs: 0x0000002b R8: 0x00036000 R9: 0x00a1a09e R10: 0x00a2a19f R11: 0x3a890060 R12: 0x0012c000 R13: 0x00000000 R14: 0x00000000 R15: 0x00000000

1. error.log Unity Player [version: Unity 5.3.4p5_83b1f50dd5b8]

[FILE_NAME].exe caused an Access Violation (0xc0000005) in module [FILE_NAME].exe at 0033:4061ab3d.

Error occurred at 2016-06-24_194404. C:[FILE_NAME].exe, run by Administrator. 39% memory in use. 7630 MB physical memory [4609 MB free]. 15258 MB paging file [11841 MB free]. 8388608 MB user address space [8387183 MB free]. Read from location 000000c8 caused an access violation.

Context: RDI: 0x00000000 RSI: 0x000000c8 RAX: 0x03cfd570 RBX: 0x00000000 RCX: 0x00000000 RDX: 0x00000000 RIP: 0x4061ab3d RBP: 0x00000000 SegCs: 0x00000033 EFlags: 0x00010202 RSP: 0x0665fcd0 SegSs: 0x0000002b R8: 0x4b3e7400 R9: 0x0000008c R10: 0x00000046 R11: 0x014f003a R12: 0x00000000 R13: 0x00000000 R14: 0x00000000 R15: 0x00000000

Bytes at CS:EIP: 48 83 3e 00 0f 85 ec 00 00 00 b9 98 00 00 00 48