Winamp Pro does not sync video podcasts correctly (help!?)

[Ethan0bfdnlth8r]

Winamp: Both 5.581 (5.5.8.2985) Pro & Winamp 5.59 (3033 beta) Pro - clean installs
Winamp Language Pack: Default
Skin: Bento

Mobo: Asus M4A77TD Pro
CPU: AMD Phenom II x4 945
Memory: 4gbs
Windows OS: Windows 7 x64 Profession, English GB
Video Card: ATI Radeon HD 5750, Catalyst 10.10
Sound Card: VIA VT1708S High Definition Audio
DirectX version: 11

Portable device: Phone: Samsung Galaxy S (UK Version)
Android OS: 2.2 Froyo
Internal Storage: 16gb
External SD Card Storage: 8gb

Example Podcast: http://revision3.com/tomstop5/feed/MP4-Small

Problem:
After syncing to a the usb portable device Winamp Pro does not recognise the video files, and so will transfer them again the next time sync is run.

To reproduce:
1) Download a video podcast
2) Sync the video podcast to a usb portable device
3) Re-sync the portable device and the video podcast will be transferred again

Under default settings the transferred podcasts do not have a filename, only their extension, i.e. .mp4 (changing the filename format to <filename> gives the file a proper unique name but does not solve the problem). The videos do not appear in either the podcast or video (if enabled) section of the device's media library, but can be viewed by clicking on entirely blank entries in the USB Drive's root media library (see screenshot). Audio podcasts work with no problems.

Many apologies if I've missed the obvious again, but this is very frustrating as I want to use Winamp for all my podcasts, but currently it is taking 30mins to sync because all the video files keep getting re-transferred. Hopefully, someone can confirm whether or not this is entirely an issue at my end, or a bug.

Thanks.