I saw something on Twitter about UMDs for PSP and it got me reminiscing about my childhood and the PSP. Then I looked into how Sony made films available on UMD for the PSP and it turns out U2 released a couple. The Rattle and Hum movie was released and so was the Joshua Tree album. Did anyone have these back in the day? Do you still have them in your collection now? Did anyone even know these were released? I have a feeling that these could be worth a few quid in the future as UMDs were a unique format and now no longer used.