*[[Cosmos]]
*[[On File]]
*Dobbertin CP/M 2.2 (63 KB TPA) and CP/M Plus
*[[FutureOS|FutureOS]] using all four partitions (I, J, K and L)
*[[Prowort]] via using Dobbertin CP/M Plus (partitions D, E, F and G)
*[[X-DDOS|X-DDOS]] (v2.10)
*[[Z3Plus]] and [[NZ-COM]](providing hundreds of additional applications)
*'-HD20BackUp' to backup / compare / restore the complete 20 MB hard disc
*In addition a lot of (cracked) games are able to run from the HD-20 hard disc
These are real hardware values!
== Emulation ==
The Dobbertin HD20 is emulated by the Symbiface III since 7/2023. Therefore you need a subfolder 'HD20' on the USB stick. It needs to contain the 21 MB hard-disc image file.
It is also [https://www.cpcwiki.eu/forum/emulators/got-bored-again/ emulated in MAME since 6/2015]
[[Media:Emulation Dobbertin HD20.txt|Documentation by TFM on how to emulate the Dobbertin HD20]]
== Other harddisc solutions for the CPC ==
Modern:
* [[M4 Board]] (IDE)* [[Albireo]] (IDESD card)
* [[CPC-IDE]] (IDE)
* [[HDCPC]] (IDE)
* [[IDE8255]] (IDE)
* [[M4 Board]] (SD card)
* [[SYMBiFACE II]] (IDE)
* [[Symbiface 3]] (USB, SD card)
* [[X-MASS]] (IDE)