Kasina help...

Hi, I have had the kasina for a few years now and have a few problems with session corruption.
The only sessions that get corrupted are the kasina sessions.
I have reinstalled the sessions in the past but got corruption once again.
So this time I have brought a new memory card and reinstalled the Sirius sessions and also found the procyon sessions which are nice. But I cannot find where to download the original kasina sessions?
Can anyone please help me with the location so I can download the sessions to replace the corrupt ones.
The corrupt ones just keep cutting out and or beeping and making strange noises, which is no good when you are in a trance state.
Thank you...