**System Information**
Operating system and graphics card
Win 7 64 bit
**Blender Version**
Broken: blender-2.70-b66a954-win64
Worked: can't find a working version
**Short description of error**
Baked Sound to F curve, if applied to a VSE strip, crashes Blender when strip moved.
**Exact steps for others to reproduce the error**
1. Add a strip
2. Add a keyframe to Opacity
3. in fcurve editor create a Bake Sound to Fcurve
4. return to VSE and move the strip.
5. CRASH.
.blend attached. Just try moving the strip in the VSE
{F82599}