Once the alleged infringing content is removed, the infringing party has the option to file a Counter Claim in response, stating under penalty of perjury that the DMCA Notice is false. The OSP/ISP must wait 10-14 days after receiving a valid DMCA Counter Claim before reactivating or allowing access to the claimed infringing content. The claimant who filed the DMCA Takedown Notice must then file a court order against the infringing site owner and the OSP/ISP if they wish to keep the infringing content offline.
Self-hosters are also subject to DMCA. Failure to comply runs the risk of being sued.
Already exists. The Star Trek Archive, one of the showcase apps for VP, can play arbitrary videos and supports all the major 3D formats, including the side-by-side commonly used in the andult industry.