[Bug-tar] tar documentation

[Andrew Lammiman]

 Hi there,

 I'm looking to find some documentation on the Unix tar format. I'm
 specifically interested in how is works from the lowest
 level. i.e. How the bytes are arragged on the media. How the headers
 are constructed etc...

 Do you know where I might be able to get my hands on this sort of
documentation?

 thanks in advance

Andrew Lammiman