Hmmm. If I recall correctly I think many Sony devices like to get everything twice. So make sure your are sending your codes twice. the repeat is the number after the frequency, which is usually about 38000
so for example: sendir,1:3,1,38109,1,1,128,64,16,16,16,48BCBCBCBCBCCBCBCCCCBBCCBCBBCBBBCBCCBCBBCCBBCCBB16,3810
you would change the number after 38109 to 2 to get
sendir,1:3,1,38109,2,1,128,64,16,16,16,48BCBCBCBCBCCBCBCCCCBBCCBCBBCBBBCBCCBCBBCCBBCCBB16,3810
(note this is not a sony code).
If you are using VC's Tools.GcCompress action, then the second param is the repeat value.