WMM 2.6 Refuses to Create Video Consisting of .WMV files but works for .JPG

I am using version 2.6 because I want to save edited videos to my Sony TRV22E camcorder.

I am using a ThinkPad T61 running Win7.

I can get MM 2.6 to create and save to my camcorder if the only content is .JPG files but if I try with .WMV content then I get the picture you can see in the screenshot. The PC works away at the short video for quite a long time (as shown in the Task Manager) but does eventually stop. There is never any progress in creating the video. (except when using .JPG)

I used Freemake Video Converter to convert my imported content to .WMV format.

What am I doing wrong?

Any help gratefully accepted thanks,

Peter

Here is the info. on my .WMV content:

General
Complete name                            : C:UsersuserVideos1946.wmv
Format                                   : Windows Media
File size                                : 135 MiB
Duration                                 : 10mn 8s
Overall bit rate mode                    : Constant
Overall bit rate                         : 1 857 Kbps
Maximum Overall bit rate                 : 2 058 Kbps
Encoded date                             : UTC 2015-05-22 12:26:21.219

Video
ID                                       : 2
Format                                   : VC-1
Format profile                           : Advanced@L1
Codec ID                                 : WVC1
Codec ID/Hint                            : Microsoft
Duration                                 : 10mn 8s
Bit rate mode                            : Constant
Bit rate                                 : 1 787 Kbps
Width                                    : 640 pixels
Height                                   : 480 pixels
Display aspect ratio                     : 4:3
Frame rate                               : 29.970 fps
Color space                              : YUV
Chroma subsampling                       : 4:2:0
Bit depth                                : 8 bits
Scan type                                : Progressive
Compression mode                         : Lossy
Bits/(Pixel*Frame)                       : 0.194
Stream size                              : 130 MiB (96%)
Language                                 : English (GB)

Audio
ID                                       : 1
Format                                   : WMA
Format profile                           : Pro
Codec ID                                 : 162
Codec ID/Info                            : Windows Media Audio
Description of the codec                 : Windows Media Audio 10 Professional - 256 kbps, 48 kHz, 2 channel 16 bit 1-pass CBR
Duration                                 : 10mn 8s
Bit rate mode                            : Constant
Bit rate                                 : 256 Kbps
Channel(s)                               : 2 channels
Sampling rate                            : 48.0 KHz
Bit depth                                : 16 bits
Stream size                              : 18.6 MiB (14%)
Language                                 : English (GB)