wrt300n.img
===========
- First 56 bytes (0x00 - 0x37) coming from binfile/wrt300n.pid
- Next 8 bytes (0x38 - 0x3F) same sequence as for WRT350Nv2
- Rest padded with zero up to 0x1FF (no MD5SUM of file like for WRT350Nv2)
- ZIP image of .bin file starting at offset 0x200
- (no 0xFF byte after ZIP image like for WRT350Nv2)

wrt300n.bin
===========
- binfile/redboot.bin at offset 0x0 coming from (0x80A0 = 0x2A)
  Size 0x04b184 (found at 0x8780, 0x8794, 0x87d0)
- Padded with zero up to 0x05ff9f
- 0x05ffa0 - 0x05FFFF filled with some values (sErCoM, etc.) ==> binfile/wrt300n.par
    0x05ffb1 - 0x05ffe8 => binfile/wrt300n.pid
- zImage Header at offset 0x060000
  4 bytes: size of zImage, Rest padded
- binfile/zImage at offset 0x060010
  Size 0x11da18
- rootdir Header at offset 0x18fff0
  4 bytes: size of rootdir, Rest padded
- binfile/ap71-rootdir.sqsh at offset 0x190000
  Size 0x20f000
- 0x3afff0 - 0x3affff filled with eRcOmM flag, version, etc. ==> binfile/wrt300n.par
- Rest padded with zero up to 0x3fffff