PreXP Microsoft ISOs - Need Help

Hello Everyone,

I've been in a trip of nostalgia for some times now, and I'm trying to clean/fill the holes in my source folder.

In fact, I tought that it would be way more easier to find sources and informations about old MS OS sources, but it has been a real pain as the Web is full of customized/homebrews isos.
(And, harder in my native language...)

During my search, I landed multiple times on MDL forums, which seems to be the only real place to find reliable informations thanks to the work that have been done here by old tech lovers.

So, here I am to ask for help with.ISO validation.

Here is the list of isos that I have. Please could someone tells me if these are valid/genuine ?

Code:

File                                                                                   Label          Channel    CRC32       MD5                                 SHA-1

en_windows_95_osr25_oem_400950c.iso                                                    Win95_OSR25    OEM        115C1EC4    912DB741210BC04CB8591EDEEC3FA0A0    97F66E77445CD4B1AC55508C36D0FDBC17F17F25
fr_windows_95_osr25_oem_400950c.iso                                                    W95_OSR25FR    OEM        EFE79F45    ADF4A7E0926340B92B5BF0C42D81C193    2DD5B52A52ECE92CF29409DCBE119F7340571A39

en_windows_98_se_oem_4102222a.iso                                                      Win98 SE       OEM        D1AF0A78    7C32B76E1B8374597CB5EF58A22AA635    FA040CD3F7FD472E9612B1721BC72D7B82538450
fr_windows_98_se_oem_4102222a.iso                                                      Win98 SE       OEM        095943B5    EE881E237289CD32A467803CFB58D147    6F1556F064778825CD9ACFBD5D18F5C4376C176A

en_windows_me_oem_4903000.iso                                                          Windows Me     OEM        9AA2616D    DD644769D2FA411029456425116A011D    25A7C617B3FC0E009E2CE5E7B5D4BBA82537D8BE
fr_windows_me_oem_4903000.iso                                                          Windows Me     OEM        23AF2028    7A405F60A2A878F54AD060BE56ECF244    1D56A25E691487587350F843E1DF1E84CAC8E66D

en_windows_nt_40_server_128bit_sp1_fpp_4001381.iso                                     NTSRV40A       FPP        FFFFFFFF    43E4BCDB722F9C3D0BD8708639D3DB34    E3FC54114DA8A4C837644B54B7EF75AF30F10A30
fr_windows_nt_40_server_40bit_sp1_oem_4001381.iso                                      NTSRV40FOEM    OEM        FFFFFFFF    BF20E00FF65740358EE79FCB0AA6CC6C    2ABC05F4C695AC12C347861078493AE79C7EE41F

en_windows_nt_40_server_enterprise_128bit_sp1_with_sp3_sp6a_sel_4001381_cd1.iso        NTENT40A       SEL        FFFFFFFF    CBB481DE88858E5068742B6C1A24117F    53E295888C35D5EC576E7AA0E6CAABF88D31FAA0
en_windows_nt_40_server_enterprise_128bit_sp1_with_sp3_sp6a_sel_4001381_cd2.iso        NTENT40B       SEL        FFFFFFFF    EB0CD14D65855101321CD362B9DE9111    553C554B32E030E9406A1096709C67271366EC94

fr_windows_nt_40_server_enterprise_40bit_with_sp3_sel_10cal_4001381_cd1.iso            NTSE_MSDNFR    SEL        FFFFFFFF    DBEDEF0103C98BE45DC0D6835AC44319    A2E3C2E11C60215CADD9FAE5B557664E9F46207C
fr_windows_nt_40_server_enterprise_40bit_with_sp3_sel_10cal_4001381_cd2.iso            NTSE_COMPFR    SEL        FFFFFFFF    8AFB4A454F41BD80A342F87E3A40E06B    0881C1F959AD353CC9C7BF0B570E494AEDF928CE

en_windows_nt_40_terminal_server_40bit_sp3_fpp_4001381.iso                             WINNT-TSE40    FPP        FFFFFFFF    989A9EF24072C840BB5788AE315366B1    68E0ABD6687541C0914F5EA456C1E547D91EB850
fr_windows_nt_40_terminal_server_40bit_sp3_sel_4001381.iso                             NTTS_SEL_FR    SEL        FFFFFFFF    554F931A655865CEE6354798D1CA185F    30B305CD48FDD9AAE338CFB7CDE2B8AC795CF47F

en_windows_nt_40_workstation_40bit_sp1_fpp_4001381.iso                                 NTWKS40A       FPP        FFFFFFFF    AD2B8B49196FA289CBE68FF6F552221E    A3A8528C34FA8120CA6945320051052744A1C121
fr_windows_nt_40_workstation_40bit_sp1_fpp_4001381.iso                                 NTWKS40F       FPP        FFFFFFFF    E47505E278FA90380ED3F335BD03FF54    4AF1FE9E63B9815F0F7C6C6BA872C05E1897D1DB

en_windows_nt_40_option_pack.iso                                                       NT_OPT_PACK    N/A        FFFFFFFF    749D5D38F83304166345B2CC858B792F    98754B8828D4D7488BF75977320FC9DFB19BE337

Of course, I can share theses files if needed.