I can relate to your link, since I now have a number of hard-drives with a ton of stuff on them that has been copied back and forth and mixed up so many times I am not quite sure what is what and which directories are complete (I have a small suspicion that none of them are). I can't imagine how a large company can possibly figure this out.

But your solution isn't going to help much. In twenty years, do we even have a computer that is capable of reading the old floppy disks? Most computers these days don't come with a floppy drive and the new mac mini doesn't even have a CD drive. Sure USB may be around, but twenty years ago you would have said the same thing about the 3.5inch floppy.

Really if you want to store source code like that, you would have to print it physical paper and store it in a massive archive. And how would you handle changes?

Do you want to print everything each time you do a svn commit? Or just the diff (yeah, that is going to be fun to type in)?

A central server, properly organized and upgraded would properly be the best, but even so it is never going to be very good. In a world were the price of data is very close to nothing, good metadata seems increasingly expensive.