Image
What is a .toast file?
A .toast file is an ISO 9660 Disk Image File. This is an image format — a picture, drawing or graphic. Confusingly, this extension has been used by 7 different formats over the years — they're all listed below.
This extension has been used by more than one format
7 different formats have claimed .toast over the years, so two files with the same extension aren't necessarily the same kind of thing.
- ISO 9660 Disk Image FileNo version recorded · fmt/468
- UDF Disc ImageNo version recorded · fmt/1738
- UDF-ISO 9660 Bridge DiscNo version recorded · fmt/1739
- Apple Partition Map Disk ImageNo version recorded · fmt/1740
- Apple Partition Map ISO 9660 HybridNo version recorded · fmt/1741
- Hierarchical File System PlusNo version recorded · fmt/1742
- Apple Partition Map - ISO 9660 - UDF Hybrid Disk ImageNo version recorded · fmt/1757
How to open a .toast file
- GIMP (free) and IrfanView open a very wide range of image formats, including obsolete ones.
- XnView MP is the best bet for unusual or legacy image types.
- Your operating system's built-in viewer may work for mainstream formats.
The registry records this extension against ISO 9660 Disk Image File, UDF Disc Image, UDF-ISO 9660 Bridge Disc and others, so software from that family is the most likely match.
How to convert a .toast file
- Open it in GIMP or XnView and export as .png (lossless) or .jpg (smaller).
The technical record
For archivists, developers and the merely curious: these are the PRONOM registry entries for .toast.
| Format name | Version | MIME type | PUID |
|---|---|---|---|
| ISO 9660 Disk Image File | — | — | fmt/468 |
| UDF Disc Image | — | — | fmt/1738 |
| UDF-ISO 9660 Bridge Disc | — | — | fmt/1739 |
| Apple Partition Map Disk Image | — | — | fmt/1740 |
| Apple Partition Map ISO 9660 Hybrid | — | — | fmt/1741 |
| Hierarchical File System Plus | — | — | fmt/1742 |
| Apple Partition Map - ISO 9660 - UDF Hybrid Disk Image | — | — | fmt/1757 |