SPLIG  Contacting the author will not help. The site specifically states that the licence is non-transferable and also recommends that you try the app out before paying. I had the same problem myself when I upgraded my Mac. It seems a bit harsh (I no no other developer that does this), but they are up front about it.  
(Version 2.2.4)

SPLIG  Matroska (MKV) has more capabilities than the standard MP4 wrapper, plus it is open source, so does not involve MPEG group licence fees.  
(Version 7.1)

SPLIG  Decent enough application and possibly worth the shareware fee. However, it should *always* be disclosed when updating a product will change it from freeware to shareware. The free trial period should at least apply from scratch. Doing so without warning is despicable behaviour on the part of the developer.  
(Version 1.1.7)

SPLIG  I agree with most of the comments:

a: We do not need yet another protocol

b: Privacy is an issue

the installer does warn that it will update automatically, but there is no choice given.

Review:

I installed this solely to watch Netflix streams. A previous version did not work, but this one does the job and has not crashed for me. I wish Netflix had chosen another protocol, BUT the software does appear to work as advertised, so I can't give it as low a score as others have done. I may need to adjust my stability score after further use.  
(Version 2.0.40115)

SPLIG  AVOID CURRENT BUILDS

There is a major bug introduced after 1.22, so do not use newer builds of Transmission until this is fixed. You will use all your bandwidth and get bad ratios on your trackers.

See more info here:

http://forum.transmissionbt.com/viewtopic.php?f=2&t=5624&st=0&sk=t&sd=a&start=30

Other than that, this is a great app  
(Version 1.34)

SPLIG  I have used FileChute since an early version and it is ideal for sending files to other people with no effort.

Yes, you can achieve this manually without buying FileChute, but this little app makes it all so easy that it is worth it for me. The best part is that for the person at the other end, they just click a URI and get the file they need. I never need to help them figure it out and that makes it well worth the small fee.  
(Version 3.0.2)

SPLIG  mronseth, thsi is simply untrue. Here is the text from the developer's site:

People who purchased DVDRemaster 2.x on or after December 2005 (including Standard to Pro upgrades) are entitled to a free upgrade to version 3.0. To upgrade your registration number, simply fill in the form below. Others may purchase an upgrade license for (US)$9.95  
(Version 3.0)

SPLIG  I have had this app since 2003 and have been asked for upgrade fees twice. The first time the upgrade was bug fixes with only minor added features.

The last time, it was an improved look, but not much else.

IMHO it is not good to keep charging upgrade fees on shareware, especially if it is not insanely great. I don't like Roxio, but might as well instead pay them for a lot more features and the same modus operandi.  
(Version 6.1.4)

WOLF  Works well for me. An earlier version crashed when no drive was present, but the developer was very responsive. Wonder why they changed from Cocoa?  
(Version 3.0.5)

WOLF  don't use it without doing a backup first. It can make your system unbootable  
(Version 1.0.1)

WOLF  Good implementation, but I wish haxies were not necessary  
(Version 1.1.2)

WOLF  reliable and *considerably* faster than the Finder.  
(Version 1.0)