| .MBI | MagicISO Inc. | Diskimage filer | Multi-Bootable Information File | MagicISO | MagicISO Inc. |
| .MD0 | Alcohol Soft | Diskimage filer | Alcohol Disk Image Segment 1 | Alcohol 120% | Alcohol Soft |
| .MD1 | Alcohol Soft | Diskimage filer | Alcohol Disk Image Segment 2 | Alcohol 120% | Alcohol Soft |
| .MD2 | Alcohol Soft | Diskimage filer | Alcohol Disk Image Segment 2 | Alcohol 120% | Alcohol Soft |
| .MDF | Alcohol Soft | Diskimage filer | Alcohol 120% Disk Image File Format | IsoBuster | Smart Projects |
| .MDO | Alcohol Soft | Diskimage filer | Alcohol 120% Split Image File | Alcohol 120% | Alcohol Soft |
| .MDS | SmartBear | Diskimage filer | TestComplete Project File | TestComplete | SmartBear |
| .MDV | Open Source | Diskimage filer | QLAY MDV Image | QLAY | Open Source |
| .MDX | Disc Soft Ltd. | Diskimage filer | Extended Media Descriptor File | DAEMON Tools | Disc Soft Ltd. |
| .MGI | RedFox | Diskimage filer | CloneCD Disk Image | CloneCD | RedFox |
| .MLC | Microsoft Corporation | Diskimage filer | Microsoft Language Interface Pack | Microsoft Windows | Microsoft Corporation |
| .MRIMG | Paramount Software UK Ltd | Diskimage filer | Macrium Reflect Disk Image | Macrium Reflect | Paramount Software UK Ltd |
| .NCD | Nero AG | Diskimage filer | Nero CoverDesigner File | Nero CoverDesigner | Nero AG |
| .NDZ | Open Source | Diskimage filer | Emulab Frisbee Disk Image | Emulab | Open Source |
| .NFI | Dream Multimedia | Diskimage filer | Dreambox Disc Image | FlashWizard PRO | DreamLogic Software |
| .NMD | Nero AG | Diskimage filer | Nero MiniDVD Compilation Data | Nero Burning ROM | Nero AG |
| .NRG | Nero AG | Diskimage filer | Nero CD/DVD Image File | IsoBuster | Smart Projects |
| .NRI | Nero AG | Diskimage filer | Nero ISO CD Compilation File | Nero Burning ROM | Nero AG |
| .NRV | Nero AG | Diskimage filer | Nero Video-CD Compilation File | Nero 2017 | Nero AG |
| .NRW | Nikon | Diskimage filer | Nikon Raw Image File | MacPhun ColorStrokes | Macphun |
| .OMG | O&O Software | Diskimage filer | O&O Image File | O&O DiskImage | O&O Software |
| .P01 | HERE | Diskimage filer | HERE Maps For Android Map Data Package | HERE Maps | HERE |
| .P2G | CyberLink | Diskimage filer | Power2Go Project File | Power2Go | CyberLink |
| .PARTIMG | Unknown Developer | Diskimage filer | Partimage File | Partition Image | Open Source |
| .PDI | Pinnacle Systems Inc. | Diskimage filer | InstantCopy Disc Image | Lightning UK! ImgBurn | Lightning UK! |
| .PGD | Symantec Corporation | Diskimage filer | PGP Disk Image | PGP Desktop | Symantec Corporation |
| .PGX | Hopedot Electronics | Diskimage filer | Hopedot VOS Data File | Hopedot VOS | Hopedot Electronics |
| .PMF | ESRI | Diskimage filer | ESRI Published Map File | ESRI ArcGIS for Desktop | ESRI (Environmental Systems Research Institute) |
| .PO | Sublime HQ Pty Ltd | Diskimage filer | Portable Object | Apache OpenOffice | Apache Software Foundation |
| .PQI | Symantec Corporation | Diskimage filer | PowerQuest Drive Image | Symantec Ghost Solution Suite | Symantec Corporation |
| .PVM | Parallels | Diskimage filer | Parallels Virtual Machine | VMware Fusion | VMware |
| .PXI | Plextor | Diskimage filer | PlexTools Disk Image File | IsoBuster | Smart Projects |
| .QCOW2 | Open Source | Diskimage filer | QEMU Copy On Write Version 2 Disk Image | Quick Emulator (QEMU) | Open Source |
| .RATDVD | RatDVD | Diskimage filer | RatDVD Disk Image | Microsoft Windows Media Player | Microsoft Corporation |
| .RAW | Unknown Developer | Diskimage filer | Raw Image Data File | MacPhun ColorStrokes | Macphun |
| .RCL | Sonic Solutions | Diskimage filer | Easy CD And DVD Creator 6 Project File | Roxio Creator NXT Pro 5 | Roxio |
| .RDF | Unknown Developer | Diskimage filer | Resource Description Framework File | Mozilla Firefox | Mozilla |
| .SCO | MR Software | Diskimage filer | OMSI Scenery Object Configuration File | OMSI | MR Software |
| .SDI | Intuit, Inc. | Diskimage filer | QuickBooks Data File | Intuit QuickBooks Pro | Intuit, Inc. |
| .SEV | Open Source | Diskimage filer | SevenUp Picture | ZX-Paintbrush | Open Source |
| .SMI | Apple | Diskimage filer | Self-Mounting Disk Image | ShrinkWrap | Aladdin Systems |
| .SUB | URUWORKS | Diskimage filer | Subtitle File | CyberLink PowerDVD | CyberLink |
| .SWM | Microsoft Corporation | Diskimage filer | Split Windows Imaging Format File | Microsoft ImageX | Microsoft Corporation |
| .T64 | Commodore International | Diskimage filer | Commodore 64 Tape Image File | Power64 | MacUpdate |
| .TAO | Smart Projects | Diskimage filer | Track At Once CD/DVD Image | IsoBuster | Smart Projects |
| .TAP | Various Developers | Diskimage filer | Commodore 64 Cassette Tape Image | Fuse | Open Source |
| .TBI | Electronic Arts | Diskimage filer | FIFA 2001 Game Data | FIFA 2001 | EA Sports |
| .TC | TrueCrypt | Diskimage filer | TrueCrypt Volume | TrueCrypt | TrueCrypt |
| .TD0 | Sydex | Diskimage filer | Teledisk Archive | Teledisk | Sydex |
| .TDI | Toshiba Corporation | Diskimage filer | Toshiba Disc Creator Image | Toshiba Disc Creator | Toshiba Corporation |
| .TIB | Acronis | Diskimage filer | Acronis True Image File | VMware vCenter Converter | VMware |
| .TOAST | Roxio | Diskimage filer | Toast Disc Image | Roxio Toast 15 | Roxio |
| .TOC | Sony | Diskimage filer | Sony PlayStation Portable (PSP) Audio File | Exact Audio Copy for PSP Edition | Interscape |
| .TZX | Kromasoft | Diskimage filer | Tanzzle Graphic Object File | Tanzzle Game | Kromasoft |
| .UBIFS | Various Developers | Diskimage filer | Linux UBIFS Image | Linux | Open Source |
| .UDF | Open Source | Diskimage filer | Universal Disk Format Image File | 7-Zip | Igor Pavlov |
| .UFS | iXsystems | Diskimage filer | FreeBSD Unix File System File | iXsystems PC-BSD | iXsystems |
| .UIF | MagicISO Inc. | Diskimage filer | Universal Image Format Disc Image | MagicISO | MagicISO Inc. |
| .VC4 | Microsoft Corporation | Diskimage filer | Visual C++ 4 File | Notepad++ | Don Ho |
| .VCD | H+H Software GmbH | Diskimage filer | Virtual CD | MPlayer | The MPlayer Team |
| .VCX | H+H Software GmbH | Diskimage filer | Virtual Disc Definition File | H+H Software Virtual CD | H+H Software GmbH |
| .VDD | Phantombility, Inc | Diskimage filer | Phantom Burner Virtual Disk Image | Phantom Burner | Phantombility, Inc |
| .VDI | Oracle Corporation | Diskimage filer | VirtualBox Virtual Disk Image | Oracle VM VirtualBox | Oracle Corporation |
| .VFD | Microsoft Corporation | Diskimage filer | Virtual Floppy Disk | Gilles Vollant WinImage | Gilles Vollant |
| .VHD | Microsoft Corporation | Diskimage filer | VHDL Source File | Microsoft Notepad | Microsoft Corporation |
| .VHDX | Microsoft Corporation | Diskimage filer | Windows 8 Virtual Hard Drive File | Microsoft Windows Server 2016 | Microsoft Corporation |
| .VMA | Proxmox Server Solutions | Diskimage filer | Proxmox Virtual Machine Archive | Proxmox VE | Proxmox Server Solutions |
| .VMDK | VMware | Diskimage filer | Virtual Machine Disk File | VMware Workstation | VMware |
| .VOL | Open Source | Diskimage filer | Video Game Archive | Dragon UnPACKer | Open Source |
| .WB | Electronic Arts | Diskimage filer | FIFA 2000 Game Data | FIFA 2000 | Electronic Arts |
| .WIL | Gilles Vollant | Diskimage filer | WinImage Disk Image List | Gilles Vollant WinImage | Gilles Vollant |
| .WIM | Microsoft Corporation | Diskimage filer | Windows Imaging Format File | 7-Zip | Igor Pavlov |
| .WLZ | Gilles Vollant | Diskimage filer | WinImage Compressed Disk Image | Gilles Vollant WinImage | Gilles Vollant |
| .X64 | Commodore International | Diskimage filer | Commodore 64 Disk Image | Power64 | MacUpdate |
| .XA | Electronic Arts | Diskimage filer | The Sims Audio File | Electronic Arts SimCity 4 | Electronic Arts |
| .XDF | NASA | Diskimage filer | Extended Disk Format Image | OS/2 | IBM |
| .XDI | Power Software Ltd | Diskimage filer | WinArchiver Extended Disk Image File | WinArchiver Virtual Drive | Power Software Ltd |
| .XGS | Microsoft Corporation | Diskimage filer | XACT Global Settings File | Microsoft XACT | Microsoft Corporation |
| .XMD | Bitdefender | Diskimage filer | Bitdefender Plugin File | Bitdefender Total Security 2018 | Bitdefender |
| .XMF | Open Source | Diskimage filer | Cal3D XML Mesh File | Cal3DViewer | Open Source |
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