Error using characters [ and ] in the file name

[Giovanna Rana]

With MP Album Maker 3.61 I pack files like
"Neil Sedaka_1980_The very best of Neil Sedaka - The show goes on - CD 1 - 17_Should've never let you go [w.Dara Sedaka]_4.16_16626 [txt] [E].mp3"
using the characters "[" and "]" in the files name.
Then when i unpack the album the file name become
"Neil Sedaka_1980_The very best of Neil Sedaka - The show goes on - CD 1 - 17_Should've never let you go [w.Dara Sedaka][_4.16_16626 ][txt][ ][E].mp3"
The error that it should be noted is the addition of some characters "[" or "]" to the same characters.
Surely a defect to be eliminated.