Question about Coby MP-705 Digital Media Player

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Video does not work on my Coby MP705-2g

This problem is seems to be four-fold.

1) I have a digital copy of Narnia that is supposed to work on portable devices. Apparently it does not seem to work on this one... My player gives me an "invalid file format" error, despite the fact that the package and manual clearly state that this is a supported file format.

2) The included conversion software does not work.

3) I cannot afford to buy conversion software (this being the reason I bought a $30 MP4 player...)

4) Even using AVS Video Converter( unactivated version, due to the above) all I end up with is an audio file (supposedly I am missing a codec).

I would like to be able to do more than just listen to music on this thing. In addition, I work at Blockbuster and would like to be able to help my customers with their Coby MP705-2g MP4 players should they choose to purchase one. Any help anybody could give me would be greatly appreciated.
Thank you

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  • 9 more comments 
  • Tannith Jan 25, 2009

    I have the same problem. I got this mp3 player on friday, and not only did I have to CREATE the Data and Video folders, but when I tried to transfer a video I had that was ALREADY an AVI (a personally filmed video from my Nikon, so no copyright issues were involved) the conversion software took my video and spat out white noise as a final result, and the mp3 player won't accept the original.

  • sotangII Feb 16, 2009

    someone seriously needs to solve this problem because no converter including the one that came with the coby 705 worked. The converter does not conver the video into a format that the player can use. The file can be viewed from the mp3 player but it says the format is invalid. so someone please post a converter that works or the exact file type that is required. i know it is AVI so please post.

  • Anonymous Mar 07, 2009

    My Coby Coby MP-705 Digital Media Player wont even play any videos

  • football_354 Mar 15, 2009

    i have downloaded the movie that i want and when i try to watch it i tells me that i have and invalid format

  • Anonymous Mar 19, 2009

    The Coby converter won't accept windows media files. They only accept: avi, mov, 3gp, mpg, qt

    I'm beginning to think the video player was never intended to work.

  • Anonymous Apr 05, 2009

    i did as IMDHT1 suggested. the converter finally worked by downloading and using prism video converter then using the converter the coby came with. But i can't get the videos into my coby still. It keeps reading error! I'd like to throw this coby away, but I spent $80 for it and just like to get it to work for my daughter. Any suggestion would be fantastic. It would help me get 1 step closer to fixing my problem with this junk mp4 player.

  • Anonymous Apr 13, 2009

    invalid file format error comes up when i try videos that are the right format for them which is avi.

  • moorific Apr 18, 2009

    i have the same problem.i did what imdht1 said but i cant find the data folder.please help

  • Anonymous Apr 25, 2009

    i cant put any vids on my mp3 player

  • makeda98 May 18, 2009

    I followed the instructions above and I still get a message that the file format is invalid. I am using the MP705-4GB. does any
    one have a solution

  • makeda98 May 18, 2009

    I called Coby support for help and was told that the problem seems to be with the software and that there was no solution. I will have to find another conversion software and set it to the settings for my MP-705 4GB. It would appear that Coby does not intend to address the software issue.
    After hours of playing around I managed to get one dvd converted, but it took hours and I don't have hours to spend on this process. Coby really needs to clean up its act.



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I worked on this all day and FINALLY found the solution. Are you ready for this!

The video converter that comes with the player actually does work but it will only convert WMV's to the correct AVI format for the player. Here's what works for me and has worked ever since I found the solution.

Download the Prism Video Converter. It's free and works. Use that converter to make your videos into WMV's. Then use the converter that comes with the player to convert the WMV's to the correct AVI format for the player. After the videos are converted to the correct format for the player move them to the Data Folder and enjoy!

Posted on Mar 03, 2009

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Just read the manual and apply some common sense. It says xvid encoded avi files with 220x176 resolution with 30 fps (frame rate) on the back of the box if you guys have overlooked at it yet....

i have tvc (total video converter) and i go to:
1) -import --->under ms Avi --->i picked Divx/Xvid Avi --> Xvid /mpeg4 Avi like it says in the back cover of the box.

2) -Then head to "setting" and go under "video option" change frame rate to 30. Head to "Video Resize" and change resolution to 220 x 176 under custom size. Boom, there you have it :)

Posted on Feb 20, 2010

  • Sotangll Nov 03, 2010

    yes but my problem ( i being SotangII, somone copied my name for some reason) My problemis that the included converter tends to only convert 5minutes of video. This is annoying as i can store a full video space wise, so the issue to begin with was that the software doesn't convert full video length. And other converters of the same kind don't support the right codec. (i don't think i will bother with video any longer for this product, The makers of this product might as well not have video if it will have no support. It is a small fix too. Just undo the damn cap on video length and i'll rest my case. Other than that software is fine.)


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Hi, here is what I did - got the same problem at first but then tried something a bit different and it worked 100%  -  here goes:
1. From the Coby website, I downloaded the Video converter 5.11 (link:
2. I used Prism converter to convert the desired AVI file I wanted to watch, to a WMV format.
3. I used Video converter 5.11 to convert this back to AVI, the resulting file now has the correct required settings for watching on the MP3. Note: step 2 was required because Video converter 5.11 did not convert AVI files for me - it only converted WMV files.
4. IMPORTANT:  whenever I used the media player to 'sync' the file into the MP3, the media player RE-CONVERTED it back to WMV for some reason, or changed the file's settings - that's why the MP3 couldn't play the video anymore, although step 3 has made it fit to.
5. Instead, I simply copied and pasted the file into the VIDEO folder of the MP3, just as I would do for a regular USB flash disk. Windows (my OS is Win 7 on a Vaio PC) prompted a message that I might not be able to watch the video if I'm moving the file this way - just ignored it and OK'ed the transfer. 
6. That's IT  !  it works every time. Try it yourself. Good luck !

Posted on Dec 30, 2009

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Prism works but also try going into your player's system and moving the usb from auto to the manual one this made my windows xp see it finally and the software loaded for it automatically. this works far better than what you download from the coby website. btw for ebooks this is a pain but first chang it to a .txt by saving as plain txt file then erase all pictures maps etc stuff you dont need and break it up into sections because it doesnt play large files.

Posted on Jul 03, 2009

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