yeah, thanx a lot! Useful but there are more points added to the question:
What is Volume 1?
Volume 2 should be Sifon, Volume 3 is a compilation of various bands (including Triumf, Skelet, Odyssea, Medium, Excalibur) and Volume 4 is Extra Band/Gepard split CD
And...still the tracklist for Sifon is unknown...it seems an unreleased album (tape? demo?) recorded in 1985, with the same line up for the split 7" with Titanic....or maybe it's just a compilation of various band and there is only one Sifon track (called Cizinec, the only information available on internet and it's not clear at all) was recorded in 1985.
thanx anyway for the links and infomation
edit: it looks like a compilation with (many?) other bands, as I see now there is also SAPON at least. So it's should be only a compilation of variou bands and the SIFON featured song is "Cizinec"....I'll update if I find more info