Has anyone tried to match music-files from Radio.fx?

Question

Hi,
i have a lot of my MP3's recorded with the software Radio.fx from Tobit-Software.
Radio.fx records internet-radiostations and automatically cuts it into mp3's including ID3-Tags, naming and so on.
MP3's obtained this way are 100% legal (at least here in Germany) as long as you pay your fees for the broadcasting-stations (in Germany GEZ).
The Files are 128 kBit/s or even better quality.
If i try to match my iTunes Library, which contains about 95 % Songs from Radio.fx i get almost no matches?
Has anyone else tried this? Any suggestions?
Updating Cover Art in iTunes and Genius-Scanning works fine with this songs... but Match doesn't seem to work.

Answer 1

So if anyone has a real technical advice for me, how i can change certain parameters of my songs to make them match better, i will greatly appreciate that.
Nobody will argue that the matching process can't or shouldn't be improved.  Certainly not me.  Certainly not Michael.  I expect there will be improvements in the coming months, but that does little for people like you and I who are trying to get iTunes Match to work for us right now.
As I believe Michael mentioned, there are some things you can try, and at the end of this post, I'll point you to a discussion that you might find helpful.
First though, I want to say that I've read many, many postings that Michael has replied to and he really has been very helpful to people like you and I who have been wrestling with some of the inadequacies and quirks of iTunes Match.  There are a lot of people who are having difficulty with iTunes Match - many, many more than there are people like Michael who donate a considerable amount of time every day to helping.  I, for one am very greatful for all he's done for me and many others.
I fully understand why he would want you to know up front, that no matter what you may do to try and alter your files, the chances of getting the success rate you desire is slim.  That is not to say you can't improve your results though.
But, one only has to read through the numerous postings related to problems getting all kinds of source material to match to know you are not alone.  Internet radio has its own specific set of issues (I worked in radio at one time, for what that's worth). The truth is, even people who purchased songs directly from the iTunes store, regardless of country, are finding that some of their songs do not match.
Now with that, I'll give you some background that may be helpful as you read through the link I'll send you.
Several of us using iTunes Match have a great deal of music that was obtained from vinyl source material.  We take great care to obtain the best possible quality recordings, meaning we have a fair amount of money invested in our equipment and have taught ourselves quite a bit about the recording process. We do what we can to get the best vinyl, spend considerable time processing the file to remove noise, and generally record at 96/24.  Many of us keep masters in FLAC or other lossless formats and tend to avoid lossy file formats if at all possible, though the final output files for iTunes may be lossy.  We do our work with our eyes on a waveform, and some of us have gone so far as to load a copy of an iTunes version of a song and compare it to the waveform of our record. 
Now some of us really don't want our precious vinyl recordings to match, simply because we prefer the sound of vinyl. For some of us, having Apple give us an option to force uploads, to buy more storage is more important than getting matches. Yet, we've all been intrigued with the matching process, since initially we did not expect much to match and were surprised when it did.  So we've been experimenting. 
Some of us have managed to get a 100% match on some albums, all but one or two tracks on others.  Albums that were pressed fairly recently and are in good shape may or may not match.  Albums recorded in the 1960's sometimes match, though the albums themselves may not be for sale in the iTunes store, so instead of our entire album being matched, we get a match to three songs one one album, one or two on another, and so on (compilations).  The point here is that while we have been able to improve our success rate, we've certainly not cracked the matching code - though we have uncovered quite a few clues.
My guess is that if you read through the thread, you will see some things that you could try to improve your own success rate.  In this thread, I believe you will find most of the experimentation that has resulted in improved matching can be attributed to a fellow who goes by the name robeet.
I do wish you the best of luck.
https://discussions.apple.com/thread/3507807?start=0&tstart=0