You can copy damaged DVD disc to a new blank DVD, ISO image, VIDEO_TS folder, MPEG2, and other formats. Now recover data fully or partly from unreadable DVD following our guide here.
Fix a CD Drive That Won't Read - Fix CD Drive
DVD/CD Recovery – How to Recover Data [Best Method]
How to Repair Scratched CDs and DVDs Cheaply and Easily - TurboFuture
5 Free CD DVD Data Recovery Software - Repair Scratched or Damaged Disc
Using FixVTS to Repair Invalid DVD File or Navigation Structure
How to make a backup copy of a protected disc (DVD or Blu-Ray)
How to fix a scratched disc — DVDs, CDs, video games saved
Repair Sracthed DVD and Get Files Off Scratced DVD
Ripping your DVDs: It's a tricky issue, legally speaking
How Long Do CDs/DVDs Last? The Truth About Lifespan, Mold, and Rot