>2 byte <8 \b, reserved method
>2 byte >8 \b, unknown method
>3 byte &0x01 \b, ASCII
->3 byte &0x02 \b, continuation
+>3 byte &0x02 \b, has CRC
>3 byte &0x04 \b, extra field
>3 byte&0xC =0x08
>>10 string x \b, was "%s"
->9 byte =0x00 \b, from MS-DOS
+>3 byte &0x10 \b, has comment
+>9 byte =0x00 \b, from FAT filesystem (MS-DOS, OS/2, NT)
>9 byte =0x01 \b, from Amiga
>9 byte =0x02 \b, from VMS
>9 byte =0x03 \b, from Unix
+>9 byte =0x04 \b, from VM/CMS
>9 byte =0x05 \b, from Atari
->9 byte =0x06 \b, from OS/2
+>9 byte =0x06 \b, from HPFS filesystem (OS/2, NT)
>9 byte =0x07 \b, from MacOS
->9 byte =0x0A \b, from Tops/20
->9 byte =0x0B \b, from Win/32
+>9 byte =0x08 \b, from Z-System
+>9 byte =0x09 \b, from CP/M
+>9 byte =0x0A \b, from TOPS/20
+>9 byte =0x0B \b, from NTFS filesystem (NT)
+>9 byte =0x0C \b, from QDOS
+>9 byte =0x0D \b, from Acorn RISCOS
>3 byte &0x10 \b, comment
>3 byte &0x20 \b, encrypted
-### >4 ledate x last modified: %s,
+>4 ledate >0 last modified: %s,
>8 byte 2 \b, max compression
>8 byte 4 \b, max speed