Reading AmigaDOS-formatted disks ?

[that_punk_guy]

You can still write a non-dos floppy, with one of the various command line utilities that are available on the net (Aminet's a good place to look). It doesn't matter that AmigaDOS doesn't  the disk because the disk-writing utility does all the necessary work.

Edit: No, zip and lha are different formats. Although they do a similar job, you can't perform actions on zip files with lha or vice versa.

[that_punk_guy]

adf2disk: http://www.aminet.net/disk/misc/adf2disk11.lha (readme)

The contents of lha files will unpack to anything from 100% to (I guess) 250% of the size of the lha archive. The efficiency of the compression depends entirely on the type of data you're using. (Data that's already heavily compressed, for instance, won't compress much at all.)

If I recall correctly (forgive me if I'm wrong, this is all from memory) if you type at the command line:

lha v (name of your archive)

You will be given information on the contents of the archive, the compression ratio of each file and their uncompressed size.