| | Full Name | What It Emulates | Advantages | | :--- | :--- | :--- | :--- | | FDI | Floppy Disk Image | A single floppy disk (e.g., game disk 1 of 3) | Faithful to original media, good for games that came on multiple disks | | HDI | Hard Disk Image | An entire installed game on a virtual hard drive | Easiest to use: often "click and play" with all data and dependencies ready |
If the game requires a data disk simultaneously, mount into FDD2 . Reset the emulator to boot from the floppy drive.
Later, more complex PC-98 titles required installation to a hard drive due to their massive size. .HDI files contain an entire operating environment (often running on an translated version of MS-DOS) alongside the installed software.
Use a modern decompression tool like 7-Zip (Windows/Open Source) or WinRAR . pc98 fdi hdi collection 3 rar
If a game stops and asks for a new disk, use the emulator's "FDD1" or "FDD2" menu to eject the current image and mount the next one in the set (e.g., Side A to Side B).
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: Use a tool like 7-Zip or WinRAR to extract the .rar file. | | Full Name | What It Emulates
The topic of distributing ROM and disk images sits in a legal grey area. In most countries, copyright on computer software lasts for decades (typically 50–70 years after the creator’s death). Since the PC‑98 was in active use until 2003, many of its games are still under copyright protection, though their publishers may no longer exist or have any interest in enforcing those rights.
: Use a PC-98 emulator to run the images. Popular options include: Anex86 : A classic, user-friendly emulator. T98-Next : Known for high compatibility with older titles.
Many PC-98 floppy games require a specific operating system disk (like MS-DOS or Disk Basic) to be mounted in Drive 1, while the actual game disk is mounted in Drive 2. If a game won't boot, check if a system disk image was included in your collection. This public link is valid for 7 days
While .hdi files are convenient because they skip the disk-swapping of the era, some reviewers note that certain archives use specialized bootloaders that can be finicky on modern emulators without proper font ROMs. Quick Technical Note
When extracting a .rar archive, you will primarily encounter two file extensions: FDI (Floppy Disk Image)
Open the emulator, navigate to Drive 1 -> Open , and select your .FDI file.
PC-98 games rely heavily on specific FM synthesis chips. Ensure your emulator has sound enabled and is configured to emulate the 26-type or 86-type sound boards.
Ideal for games that run directly from floppies.