If you know about C64-Disc-Covers or wish to skip the introduction, click here to go to the gallery.
I recommend reading the text below first if you have no idea what this is about.

Yet again I have no idea who started that specific style but my guess is Electric of Extend, since he perfected that style over quite a long time.
The main idea of that style was to use small black dots to create shadings instead of using different greys.

Here are a two examples :

Duce - Skyhigh

Junkie - Rebels

Dave - Idigents

Okay, a few of the stories about swapping Floppydiscs per mail in general.

I had about forty contacts simultaniously in my best times, swapped discs with over 150 people in all those years and really considered about thirty of them to be friends because our conversations was not limited to scene-stuff. Its basically the same as with friendships on IRC, IM or Webboards nowadays.
I met a few of them personally on demoparties or elsewhere, one of the best things to happen to me was a trip to turkey where I met a contact of mine (damn, forgot his handle ... I am ashamed) and spent a few great days with him.

However, the whole thing was expensive. Sending out twenty A5-Letters per week all over germany and europe is not cheap, especially not for a youngster still going to school. In the first years there was a so called "Bookdelivery"-Fee which was way cheaper than a normal letter, the only rule was that the envelope could not contain anything handwritten, only books, discs or similar. After a few years the german postal service explicitely excluded floppydiscs from that offer.

So we invented a few techniques to save money on postage-stamps.
First trick was to use paperglue on postage-stamps. You put a stamp on the envelope, put a small layer of paperglue on it and then send it to your contact. If everything went well the mark of the postal service only affected the layer of glue, if you did cut the postal-stamp out and put it into water you got a postal-stamp without the black marks and could use it again. However, this was a serious fraud and a few people overdoing this went to court and had to do some hours of civil-service (if they were lucky and under 18).

In the early nineties the german postal-service was experimenting with automated processing of letters and for some time this system was not really working, to our advantage. It basically checked the envelope for something coloured in the upper right corner and then assumed that it was a correct stamp and marked it. For a few months it was enough to draw some loops with coloured pencils, I had quite a few envelopes that had a correctly marked naive-art-painting instead of a proper postal-stamp. The business terms of the german postal-service clearly stated at that time that an envelope with a proper postmark had to be delivered and so they couldn't argue when they found out later that the letter was not paid for correctly.

In the mid-nineties when the scene in poland began to grow there was another way to save money.
The whole thing went like this : I prepared my mail, put a 10 Pfennig stamp on it (about 5 cents, it normally should have been something like 3,20 DM (1,60 €)), did not write a return-adress on the envelope and just put it in the mailbox. Now someone from the postal-service picked it up and instantly realized that the whole thing was completely underpaid, but since there was no return-adress they couldnt just deliver it back to me telling me that it was not paid for correctly.
The normal way would have been to deliver the envelope and make the receiver pay the difference, but there was no agreement with the polish postal-service at that time on how to handle this in terms of sharing the money that the receiver paid.
So basically the letter went to the postal-service-office in Berlin where they just collected those mailings and gave them to the polish-postal service because according to their business conditions they had to deliver the mails, underpaid or not. The postal service of poland in turn just delivered it to the receiver without asking for the missing fee because they had no agreement with the german postal-service on how to share this fee and just left it this way. The whole thing went the same way in the other direction and although a letter took over a week this way it was very cheap.

The scene at that time was still partly illegal because of the few games coming out being cracked and the postal-fee-fraud, and so the postal-service and the law started to observe people from time to time. After I got no mail in one week I knew that they were observing me, after about eight weeks some policemen did ring my doorbell and delivered a bag with all the mails from the those weeks for me, luckily no one had sent cracked games in that time (wasn't interested in anyway) and those few letters that had glued stamps were not my fault.

I have to say that I really have good memories from that time, the feeling of coming home after school and looking for mails in the box, the frustration if nothing arrived or the joy about five or more mails, each containing up to six dics and spending hours watching new demos, reading discmags and so on.
I had quite some friends this way back in that time, a few names come to my mind, as for example Ned/Accept, the whole Tigercrew Posse (especially Mephisto, Greenhorn), the whole Plush Posse (especially Tecmo), the guys from Dresden (PVCF, Fanta and the others) aswell as Nephelim and others from Poland. Still, alot of names have dropped from my mind, sorry.