As of Mp3tag v3.33-beta.5, these are the untranslated strings for the Korean translation of Mp3tag.
/cc @ciwlx
_C_MANAGECOVERS Manage Covers
_C_MANAGECOVERS_ACC_COVERINALLFILES Cover in all files
_C_MANAGECOVERS_ACC_COVERINONEFILE Cover in 1 file
_C_MANAGECOVERS_ACC_COVERINSOMEFILES Cover in {1} files
_C_MANAGECOVERS_BTN_ADD &Add...
_C_MANAGECOVERS_BTN_REMOVE &Remove
_C_MANAGECOVERS_BTN_REPLACE Rep&lace...
_C_MANAGECOVERS_COL_COVER Cover
_C_MANAGECOVERS_COL_METADATA Metadata
_C_MANAGECOVERS_COL_STATUS Status
_C_MANAGECOVERS_MNU &Manage covers...\tCtrl+Alt+M
_C_MANAGECOVERS_MNU_APPLYTOALL A&pply to all
_C_MNU_COVERS_ADJUST Adjust all covers
_C_MNU_COVERS_REMOVE &Remove all covers
_C_MNU_COVERS_REPLACE Rep&lace all covers...
_C_MNU_COVERS_SETDESC Set all cover &descriptions...
_C_MNU_COVERS_SETTYPE Set all cover &types
_C_MNU_EDIT_SELECT_SIMILAR Select similar files\tCtrl+G
_C_MNU_EDIT_SELECT_SIMILAR_NEXT Select next similar files\tCtrl+Shift+G
_C_MNU_SB_EDIT_SELECT_SIMILAR Select files similar to the currently selected file based on the active sort criteria {1}.
_C_MNU_SB_EDIT_SELECT_SIMILAR_NEXT Select next similar files that are different from the currently selected file based on the active sort criteria {1}.
_C_OPT_ADVANCED_MATROSKAVIDEO Use recommended mapping for Matroska video
_C_OPT_ADVANCED_MP4_WRITEMULTIDATA Use single MP4 atom for multiple values
_C_REMOVE &Remove
_M_LOG_REMOVED_UNSUPPORTED_FIELDS Removed unsupported fields from {1} of {2} files.
_M_STR_RESET Reset
_M_STR_TAGTYPES_REMOVE_CAPTION Remove Tag Types
_M_STR_TAGTYPES_REMOVE_MENU &Remove Tag Types...
_M_STR_TAGTYPES_REMOVE_MSG Do you want to remove the following tag types?
_M_STR_TAGTYPES_REMOVE_MSG_BTN &Remove anyway
_M_STR_TAGTYPES_REMOVE_MSG_WARN Tags may contain volume normalization data (such as MP3GAIN_UNDO) needed to restore original levels.
_M_STR_UNSUPPORTED_FIELDS_REMOVE_MENU Remove &unsupported fields
_M_STR_UNSUPPORTED_FIELDS_REMOVE_MSG Do you want to permanently remove all unsupported fields?
_M_STR_UNSUPPORTED_FIELDS_REMOVE_STATUS Removing unsupported fields ... {1} of {2}