ISO 9660 TOC List

Paste the base64 text for a .iso disc image and get a read-only table of contents: the volume label, directory tree, file sizes and a quick summary. The parser reads only ISO 9660 volume descriptors and directory records; it never extracts or decodes the file contents stored in the image.

What it reads

• The Primary Volume Descriptor at sector 16 (CD001).
• The volume identifier / label.
• The root directory record and nested directory extents.
• File identifiers and byte sizes, with ISO ;1 version suffixes stripped.
• Joliet supplementary descriptors when present, so long mixed-case UCS-2 filenames are preferred.

Choose tree for an indented directory tree, list for one path per line, or summary for label, standard, block size and counts. To prepare input locally, run base64 disc.iso and paste the output.

Worked example

A small ISO with volume label TESTDISC, a root file README.TXT (11 bytes), and a DOCS/A.TXT file (4 bytes) renders like:

/  (volume: TESTDISC)
├── DOCS/
│   └── A.TXT  (4 B)
└── README.TXT  (11 B)

Limits and edge cases

• Input must be base64 text for an ISO 9660 image; raw binary bytes are not accepted in the text box.
• The parser is metadata-only: it does not extract file contents or validate checksums.
• Directory traversal is cycle-guarded and capped to avoid pathological images.
• Rock Ridge POSIX extensions are not interpreted; Joliet long filenames are preferred when present.
• Very large pasted base64 strings may be uncomfortable in a browser text field. Use the CLI/chat surface for larger images if available.

FAQ