mpb files to be killed ?

[ftr]

I just received a message that the memory of my htc e650 is full and so
looked into the windows explorer to see where this comes from. I
discover more than 300 mpb files with 500 KB, with no datre stamp, in a
folder named messages. However, the mpb format is a mobipocket format
which should not be a format for messages.

what is this file format ? Cabn I kill these files ?

any help appreciated

- ftr

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