I have inserted a "backup" of navigation disc in my RDX but problem is when it reads the street names, its voice is fast fowarded/highpitched/chipmunk like. What would cause it to read like that (maybe DVD burning speed?), the rest of the navigation system is fine, just when it reads streets sounds like chipmunks.

Also, will Honda DVD Navigation 4.73 work on my RDX?

Any help would be gratefully appreciated!!