How to detect a CD Drive / write permissions?

[Ken Ray]

 didn't found the answer in the archives, though it seems to be very
> standard.
> 
> 1. How to test If I have write permissions on a dir?
> 
> 2. How can I detect, if a volume is a HD or CD/DVD?

What platform(s) do you need this info for?

Ken Ray
Sons of Thunder Software, Inc.
Email: kray at sonsothunder.com
Web Site: http://www.sonsothunder.com/