set 1 and 2 have the same structure, but two files are different.

tape1 file0 bootstrap
tape1 file1 root disk image (broken, different between sets)
tape1 file2 cpio binary
tape1 file3 / cpio
tape1 file4 /usr/man cpio
tape1 file5 /usr/src/rje cpio
tape1 file6 /usr/src/graf cpio

tape2 file0 /usr cpio (different between sets, set2 broken?)

use to extract files like ` file.tape 3 > file3`