: This is a specific catalog or identification code. In many media circles, "SOD" refers to a specific Japanese adult media producer ( Soft On Demand ), and "2U32" would be the unique identifier for that specific release.
: Check the file size against other parts; they should generally be identical except for the last one. GF301122-SOD2U32-ELA.part3.rar
: This could refer to a specific actress, a subtitle language (like "English Language"), or a version code. : This is a specific catalog or identification code