All of mine but one failed. I also lost 3 from the WB Gangster sets. But spare a thought for those of us outside of the U.S. Warners won't replace our failed discs because, theoretically, the discs were not meant to be sold outside the USA.
Like others have reported, My Dream is Yours from the Doris Day collection won't play past 1h15m. Sometimes when I get a faulty disc I try it on the Computer. If it plays OK on the computer I burn a new copy. It's worked for me once or twice.