[MC-21172] resourcepack crashes

I want to use a 256x256 texturepack and its exactly 135Mb big and everytime i start minecraft it crashes because of the resourcepack. I got an error log but i dont know what exactly the crash causes.

This is the logfile

---- Minecraft Crash Report ----
// Why did you do that?

Time: 03.07.13 02:19
Description: Registering texture

bhy
	at bhv.c(SourceFile:58)
	at bhz.b(SourceFile:92)
	at bhz.a(SourceFile:59)
	at bib.a(SourceFile:69)
	at bib.a(SourceFile:58)
	at bib.a(SourceFile:49)
	at atn.O(SourceFile:377)
	at atn.d(SourceFile:598)
	at net.minecraft.client.main.Main.main(SourceFile:101)


A detailed walkthrough of the error, its code path and all known details is as follows:
---------------------------------------------------------------------------------------

-- Head --
Stacktrace:
	at bhv.c(SourceFile:58)
	at bhz.b(SourceFile:92)
	at bhz.a(SourceFile:59)

-- Resource location being registered --
Details:
	Resource location: minecraft:textures/atlas/blocks.png
	Texture object class: bhz
Stacktrace:
	at bib.a(SourceFile:69)
	at bib.a(SourceFile:58)
	at bib.a(SourceFile:49)
	at atn.O(SourceFile:377)

-- Initialization --
Details:
Stacktrace:
	at atn.d(SourceFile:598)
	at net.minecraft.client.main.Main.main(SourceFile:101)

-- System Details --
Details:
	Minecraft Version: 1.6.1
	Operating System: Windows 7 (x86) version 6.1
	Java Version: 1.7.0_25, Oracle Corporation
	Java VM Version: Java HotSpot(TM) Client VM (mixed mode), Oracle Corporation
	Memory: 50200688 bytes (47 MB) / 148299776 bytes (141 MB) up to 1037959168 bytes (989 MB)
	JVM Flags: 1 total; -Xmx1G
	AABB Pool Size: 0 (0 bytes; 0 MB) allocated, 0 (0 bytes; 0 MB) used
	Suspicious classes: No suspicious classes found.
	IntCache: cache: 0, tcache: 0, allocated: 0, tallocated: 0
	Launched Version: 1.6.1
	LWJGL: 2.9.0
	OpenGL: AMD Radeon HD 6650M     GL version 4.1.10834 Compatibility Profile Context, ATI Technologies Inc.
	Is Modded: Probably not. Jar signature remains and client brand is untouched.
	Type: Client (map_client.txt)
	Resource Pack: S.T.A.L.K.E.R 256x256 V5
	Profiler Position: N/A (disabled)
	Vec3 Pool Size: ~~ERROR~~ NullPointerException: null