Windows 10 (business editions), version 1903 (updated Oct 2019) (x64) - DVD (Japanese)
ja_windows_10_business_editions_version_1903_updated_oct_2019_x64_dvd_a7cd0048.iso
SHA1: c7d11b3ac5640c48abbca0d5977c15d18258cf40

Windows 10 (business editions), version 1903 (updated Oct 2019) (x86) - DVD (Japanese)
ja_windows_10_business_editions_version_1903_updated_oct_2019_x86_dvd_5e607a9b.iso
SHA1: 0685df2863ba6f5d608ec0fefa9c4c2db9a0e502

Windows 10 (consumer editions), version 1903 (updated Oct 2019) (x64) - DVD (Japanese)
ja_windows_10_consumer_editions_version_1903_updated_oct_2019_x64_dvd_849dd4aa.iso
SHA1: a55a22d0047cdaa0a94d60a38c8084cb89cab28e

Windows 10 (consumer editions), version 1903 (updated Oct 2019) (x86) - DVD (Japanese)
ja_windows_10_consumer_editions_version_1903_updated_oct_2019_x86_dvd_c092ee4b.iso
SHA1: 6b2abb3b882246896568eaef0c159604f50ee9db