Here is the verification report regarding the specific MSDN release you referenced:
Windows 8.1 Pro VL (x64) - DVD (Hungarian) MSDN + Rollup (ROL) 1. File Verification (If ISO checksum is known) For a genuine MSDN release (typically hu_windows_8_1_pro_vl_x64_dvd_2972004.iso or similar): Windows 8.1 Pro VL -x64- DVD -Hungarian- MSDN - With Rol