Part 2: http://www.youtube.com/watch?v=m7rhZbwg6TY

Episode 1 - Labyrinth

Tools used: MKVExtractGUI-1.6.4 and MKVtoolnix to extract the video and audio from mkv.
OGMDemuxer to extract video and audio from ogm.
dBpoweramp Music Converter to change the AAC from the MKV to Lame mp3.
VirtualDub-1.8.0 with both video and audio and direct stream copy to combine lame mp3 and good avi video quality together and split it into 4 parts.

I think you should probably watch the whole OVA or the movies, except Premium which comes after season 2, before watching the episodes because they seem to take place before the TV episodes do. It goes like this....

1.)
Slayer Excellent---Slayers Special/Slayer Book of Spells---Slayers the Motion Picture/Slayers Perfect---Slayers Return---Slayers Great---Slayers Gorgeous---Slayers (original)---Slayers Next---Slayers Premium---Slayers Try---Lost Universe

OR

2.)Slayers the Motion Picture/Slayers Perfect---Slayers Return---Slayers Great---Slayers Gorgeous---Slayer Excellent---Slayers Special/Slayer Book of Spells---Slayers (original)---Slayers Next---Slayers Premium---Slayers Try---Lost Universe

Well, all in all it probably dont matter how you watch. this is just a flow chart that guides you on what to watch first. Judging by the imperfect quality of the videos though id say this was ripped from a VCR containing the episode but thats just my guess. The way im going to post it on youtube is by the order of 1.) since OVAs are quite interesting to watch. If anyone can figure the hack or something thatll help me upload all episodes without splitting them then thatd be great! (less info)