Spanish MSDN ISO names and hashes for Windows 8.1es_windows_8_1_x64_dvd_2707379.iso
SHA1: 08C6B43ED6C96E7F98DAED9D13308E536B6D1481
es_windows_8_1_x86_dvd_2707521.iso
SHA1: 2646605E89EC14BBDDDAAC2122F9A25C3F95624C
es_windows_8_1_enterprise_n_x64_dvd_2971930.iso
SHA1: 8A207CFF58DA706DDDBD20110DA0A88F575DF0A8
es_windows_8_1_enterprise_x86_dvd_2972346.iso
SHA1: 4A0C8344E1FD26D545F93D38BFECDC7F92A1762B
Fuente:
http://forums.mydigitallife.info/threads/51311-Spanish-MSDN-ISO-names-and-hashes-for-Windows-8-1