@Mugo
There IS a "Welcome" sound sample in Alien Breed Tower Assault...........sort of..its a whole sentence but you have to cut out the Wecome part using a sampler such as DSS8+
Its the part when you acces one of the Intex Network computers placed everywhere in the levels.............the sample says " Welcome To Intex Network" or something cloe to that.
Also about Knoppix....just coonect your Amiga with a sampler to the PC while it boots..and capture the sound file in IFF/8svx :-)