gzip isn't really intended to create zip-type archives. It's main purpose is just to compress single files. To put multiple files into a gzip'ed archive you should tar them together first. Here's a quote from the gzip man page:
"If you wish to create a single archive file with multiple members so that members can later be extracted independently, use an archiver such as tar or zip. GNU tar supports the -z option to invoke gzip transparently. gzip
is designed as a complement to tar, not as a replacement."
Tracy Dryden
tracy@bydisn.com
Meddle not in the affairs of dragons,
For you are crunchy, and good with mustard.