http://velesoft.speccy.cz/other/trdos-utils-2010.zip
This archive contain new convertors for PC:
SNA2SCL - convert SNA snapshot to tr-dos snapshot in SCL
Z802SCL - convert Z80 snapshot to tr-dos snapshot in SCL
TAP2TRD - convert TAP file to TRD image :v2_thumb:
All this convertors exist in three versions - WIN32, DOS16, LINUX
Author of all utilities: ZXY (Czech ZX user)