I left a comment about a sound problem . then I send an email to Wonder Fox about the sound problem. they wrote back.

Dear User,

Thanks for reaching us.

It's a bug with that version. You can try updating to the latest version but the key may become invalid.

Thanks for your support!

Best Regards.

Gabriel | Department of Technical Support | WonderFox Soft

This is an excellent software. Check out my detailed review here

https://www.netans.com/2021/11/28/wonderfox-hd-video-converter-factory-pro-review/

Love this converter! Definitely my favorite. Faster by a factor of 5 than any other converter I've tried. Three thumbs up!

Downloaded, installed, registered, and a bit confused
as in comparisonwith the other giveaway converters, conversion here is 3-5 times slower. Why ???

Another, more serious issue - screen recorder does not work !
Opening this option reveals system message informing that:
"... file rec-a64.dll seems incompatible with Windows or contains errors...
error status 0xc000035"
The recorder interface opens, and I can choose options and click "REC" button, but after 5 to 1 countdown the frame of the recorder appears with the time counter standing on 00.00 and nothing else happens. Pushing "Rec-STOP" of course cleans the recording frame, however there is no trace of the recorded file, because recorder does not start.

I suppose this is probably a library only for 64bit systems, while my Win10 is 32bit.
Strange, as the installation process was not disturbed and the other functions work.
Software reinstallation did not eliminate this bug.
Do you have any suggestion, how to make recorder work?.

Some really, really crazy voting going on here. Praise the software and it gets a negative review, while commenting on "readme" gets positive reviews.
How can some be totally ignorant or criticize to the fact that maybe, just maybe some folk suffer with "Word Blindness". I do and I sometimes struggle!

I downloaded, installed and registered the App following the instructions with no problems.
I tested the Trim (scissors) function for cutting parts of a video. This was very fast. When the operation was ready popped up a dialog window for accessing the resulting video and some additional information. The resulting video was very good.

The additional information was as follow:

"You Are Using the Giveaway Version Now!
The giveaway version is only for evaluation purpose, which has some limitations:
-Functional limitations.
-No free support.
-No free upgrade.
-Others"

I'm just wondering what the functional limitations are.
Anyone that knows something about that?

Saludos

Again an outstanding program from WonderFox, however I' m somewhat confused about the WF offering. Maybe out of topic, but what are the differences between DVD Ripper Pro, DVD Ripper Platinum, HD Video Converter Factory and DVD Video Converter ?

Can't receive the emailed link

Thoroughly impressed with this software, after having been a paid user for a few years, now. I don't think it's ever crashed on me, and it makes good use of my Nvidia graphics card to speed-up the video conversions and handles H.265 conversions well. I use it on a weekly basis, and it's saved me untold drive space on my NAS, allowing me to convert downloads and/or strip away unwanted add-ons The author has consistently been responsive to questions and regularly updates the program. Still glad I purchased the software after all these years. The only want remaining on my wish-list; is frame-accurate editing. Thankfully, that's not a commonly needed feature for me.

I don't have the product key for registration. Where will I get it for free?

Absolutely amazing software, thanks a lot!

Thank you. I love this product and I wouldn't change anything about it.