Cubase compatability with other programs

[Fire Dome]

hey I have ben using cubase SL 2 for about 4 months now and have encoutered some problems with it and other programs.

First problem is to do with audacity 1.2.2. I want to use this as my primary audio editor but a problem occurs when I try and save over the original wav file. For example say i have recorded a guitar track and i want to fiddle about with it in audacity I can import it fine and once I have finished editing I go to export it and overwrite the original file. But it won't allow me to do this and I get an error message coming up that says " error: is directory write-protected or disk full". I have an 80gb hard drive with 60gb free. and all my files are not read only. So what is going on. This technique worked with the free cubase software that came with my tascam us-122 but it won't with SL.

Second problem. Another scenario. Often i find audio files that I have recorded that are just mess arounds. They are usually called Audio_09.wav or something like that. When i try and play them in Windows Media Player 10 an error message comes up saying that " Windows Media Player could not play the file. One or more codecs required to play the file could not be found". This means that I have to play them in Winamp which is not ideal because I find it very unreliable.
Is this problem just a bug that windows has not noticed because WMP10 is relatively new or is it something different.

Any ideas greatly appreciated

Cheers

Dave

[Disposable]

Don't know what to tell you about Problem # 1.
But Problem # 2...
What bit depth/sample rate are you recording at?
I'm not sure if WMP plays .wav files that are not 16bit/44.1 kHz.
I've never tried it.

[Fire Dome]

Disposable
I'm not sure if that is the problem because WMP 9 played all the files fine and they are all recorded in the same way.

Dave