Totally MAD CD Rom: jpeg image not recognised about jpegsnoop HOT 2 CLOSED

The file you provided appears to be JPEG compressed, however I suspect the file has been obfuscated slightly from the standard JPEG JFIF file format. In particular, the 0xFFB9 marker is an invalid marker according to the JPEG standard, though the encoding looks to be almost identical to a standard baseline DCT marker (0xFFC0). Using a hex editor to modify the 0xFFB9 to 0xFFC0 at file offset 0x00000021 and then changing JPEGsnoop to use relaxed parsing mode will enable the decoder to proceed to the Start of Scan. Analyzing the scan segment itself, the file you provided looks like it was structurally correct. However, the file is also missing a Huffman table segment, which will prevent JPEGsnoop from decoding the variable-length coded bitstream. I tried injecting the MJPEG / AVI default DHT, but this wasn't a match for the scan segment encoding. It would be quite an involved process to identify the correct Huffman tables, so unfortunately I wouldn't be able to assist further.

Good luck!

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Thankyou anyway for looking - i will continue to have a play around

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