it seems to be a problem with the packaging (that it has a toy or something)
Here's one comment from an Amazon customer:
"I just wanted to add what someone alerted me to on another thread. I guess the plastic wrap that holds the plush toy to the game was wrapped too tight...that warped the disk thus making it unplayable! This means that a game w/out the plush toy should work fine. Hope this helps!"
Link:
http://www.amazon.com/Disk-Problems/forum/Fx1DOBTYJR2XTZY/TxTIAT2SOZNCKH/1/ref=cm_cd_dp_tft_tp?_encoding=UTF8&asin=B001COVME6&store=videogames
Note: It seems the game is ok now, available again =)
Castlevania Judgment FC: 1161 - 3389 - 1512
3DS Friend Code: 3480-2746-6289
Wii Friend Code: 4268-9719-1932-3069