I've had a look on the Sony web site at the mic you refer to and it is NOT listed as being compatable with your camcorder (DCR-TRV25).
Why not just use a generic camcorder mic such as :
www.keene.co.uk
HAMA RMZ14 STEREO MICROPHONE £39.99
Not as expensive as the Sony, but should be ok. I've not used this mic, but have ordered from Keene and had a very good service from them.
Before you buy check that your camcorder has an input for an external mic, otherwise you are waisting your time & money.
Mark.