That ebay auction is both ridiculous and a bad example.

The floppy version only has six episodes (An episode a disk, if I remember correctly)

The CD version you get from Epic Classics (Perhaps the simplest way to get your hands on a original copy) will have all six episodes plus three bonus ones and Holiday Hare '94.

The trilogy, like the name suggests, contains only the first three episodes and is generally a waste of money.

If you want JJ1 for free, it is possible to find it on abandonware sites, but forum rules prohibit us from telling you where (Basically, you are on your own there)