Copies with the slit are marked that way by record stores to indicate that they are not for sale or have been deleted. Usually this happens to overstock items that have been discontinued. I consider these items as "damaged" and are usually undesirable to collectors.
Thanks, bushleaguer.. Maybe i've not searched very well, but i'm still looking for a sealed copy without this ugly slit, and can't find it anywhere (i love japanese versions of pj albums )..
It was bought in russia these days from my friend. serial 82876 71467 2 that is the number of other version but is in jewel case. it must be original. the paper is the same