Random Files on Memory Card

After using the MPC for a week now, I have been saving my files on my memory card. After awhile, I began to see these random files that have names that look Japanese. Can someone explain to me what these files are?

its means the program cant find samples that are assigned to that program.

oooooh ok, how do i get rid of them?

Under the save mode there is an option to delte files.