| pgd | PGP Virtual Disk Image |
| pqi | PowerQuest Drive Image |
| pvhd | Paragon HDM Virtual Hard Drive Image |
| qcow | QEMU Copy On Write Disk Image |
| qcow2 | QEMU Copy On Write Disk Image |
| qed | QEMU Disk Image |
| ratdvd | RatDVD Compressed Disk Image |
| rdi | Rohos Disk Image |
| refs | Resilient File System Image |
| rqi | R-Quest TrueNet Disc Image |
| rr | ISO Disk Image with Rock Ridge Extension |
| rvd | VPHybridCAD Drawing |
| rwm | Windows Imaging Resource-only File |
| scl | TR-DOS Floppy Disk Image |
| sdi | System Deployment Image |
| sdk | ShrinkIt Shrunk Disk Image |
| sdsk | SafeHouse Private Storage |
| simg | Synclavier Disk Image |
| sle | Steganos Security Suite Virtual Drive |
| sopt | SynclavierX Optical Disk Image |
| sparsebundle | Mac OS X Sparse Bundle |
| sparseimage | Mac OS X Sparse Image |
| sqfs | Squash FS Bootable |
| squashfs | SquashFS Image |
| st | Atari ST Standard Floppy Disk Image |
| sub | CloneCD Sub Channel Data |
| swm | Splitted Windows Imaging File |
| t64 | Commodore 64 Tape Image |
| tao | Track-at-Once CD/DVD Image |
| tbi | TeraByte Unlimited Image |
