These files are Apple's Macintosh ROM images that can be used with emulators to run the classic Mac OS Operating Systems.

These images are from old computers no longer supported by Apple and hence, they can be considered abandonware.

Abandonware is a product ignored by its owner and manufacturer, and for which no product support is available. Although such product is usually still under copyright, the owner may not be tracking or enforcing copyright violations. Abandonware is a variant of the general concept of orphan works.

As far as we know, Apple never released any official statements in regards to their legacy Mac ROMs and never took legal action to enforce it's copy.

In this torrent you will find the following ROM images separated by size:

64KB ROMs

28BA61CE - Macintosh 128
28BA4E50 - Macintosh 512K

128KB ROMs

4D1EEEE1 - MacPlus v1
4D1EEAE1 - MacPlus v2
4D1F8172 - MacPlus v3

256KB ROMs
97221136 - Mac II FDHD & IIx & IIcx
96645F9C - PowerBook 100
96CA3846 - Mac Portable
B306E171 - Mac SE FDHD

512KB ROMs

368CADFE - Mac IIci
4147DD77 - Mac IIfx
350EACF0 - Mac LC
36B7FB6C - Mac IIsi
A49F9914 - Mac Classic
3193670E - Classic II
35C28F5F - Mac LC II

1MB ROMs

420DBFF3 - Quadra 700 & 900 & PB140 & 170
3DC27823 - Quadra 950
4957EB49 - Mac IIvx & IIvi or Performa 600
E33B2724 - Powerbook 160,165,165c,180,180c
ECFA989B - Powerbook 210,230,250
EC904829 - Mac LC III (older)
ECBBC41C - Mac LC III
ECD99DC0 - Color Classic
F1A6F343 - Quadra, Centris 610,650
F1ACAD13 - Quadra, Centris 610,650,800
0024D346 - Powerbook Duo 270C
EDE66CBD - Color Classic II & LC 550 & Performa 275,550,560 & Macintosh TV
FF7439EE - LC475,575,Quadra 605,Performa 475,476,575,577,578
015621D7 - Powerbook Duo 280 & 280c
06684214 - LC,Quadra,Performa 630
FDA22562 - Powerbook 150
064DC91D - LC, Performa 580 & Performa 588

2MB ROMs

B6909089 - PowerBook 520 520c 540 540c
5BF10FD1 - Quadra 660av & 840av
4D27039C - Powerbook 190 & 190cs

4MB ROMs

9FEB69B3 - Power Mac 6100 & 7100 & 8100
9C7C98F7 - Workgroup Server 9150 80MHz
9B7A3AAD - Power Mac 7100 (newer)
63ABFD3F - Power Mac & Performa 5200,5300,6200,6300
9B037F6F - Workgroup Server 9150 120MHz
83C54F75 - Powerbook 2300 & PB5x0 PPC Upgrade
9630C68B - Power Mac 7200&7500&8500&9500 v2
96CD923D - Power Mac 7200&7500&8500&9500 v1
6F5724C0 - PowerMac, Performa 6400
83A21950 - PowerBook 1400, 1400cs
6E92FE08 - Power Mac 6500
960E4BE9 - Power Mac 7300 & 7600 & 8600 & 9600 (v1)
960FC647 - Power Mac 8600 & 9600 (v2)
78F57389 - Power Mac G3 (v3)
79D68D63 - Power Mac G3 desktop
CBB01212 - PowerBook G3 Wallstreet
B46FFB63 - PowerBook G3 Wallstreet PDQ

3C434852 - New World ROM