Ars Technica reports on a developing case where Macrovision, developers of a well-known video anti-copying technique preventing easy duplication of DVDs and videotapes, sued Sima, developer of a well-known anti-Macrovision device one can plug in between a DVD player and a VCR (or two VCRs) to make copies.

If Sima loses, what rights do you lose in the process?