Pirated CDs

I recorded a live concert in 1987. Now copied DVDs from that concert and pirated CDs with the music from that concert are being sold in Great Britain on internet sites -- without my permission or my recording company's permission. Obviously they are making financial gain off me with no compensation returned to me. What recourse do I have to go after these people? Is there any reciprocity in regard to international law pertaining to such things? What would my next move be?

[annjd]

If you can locate them they can be sued for a variety of infractions.
The police may also assist depending on the situation.

World Law's lawyers could also probably help resolve this if need be. You may email them on the home page.