RCB> Why a mp3 file would be crashed if the checking is good?

The fact that the filesystem structures on disk are consistent and sane means
nothing about the actual data content of the file.  The data in the MP3 file
could have been corrupted in any number of ways, from being accidentally
downloaded using FTP in text mode instead of binary mode to accidentally being 
concatenated with another file with a mistyped COPY command.

And then there's the fact that not all file players and viewers are equal. 
Not all software copes with every possible ramification of the file formats. 
There are many JPEG files floating around Out There that PMJPEG will refuse to 
display but that PMVIEW will display quite happily, simply because they use
JPEG file format features that PMVIEW understands but that PMJPEG does not.

 ¯ JdeBP ®

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