Kumyoung Vivaus Mini

Hi, welcome me, i'm a new member, this is my first post :)

I just purchased the Kumyoung Vivus Mini last week. And had some progress already on my research on it's format. BTW, it is harddisk based, so the files are scattered in the harddisk unlike in DVD karaoke player where there are 2-4 files where all the songs are packed together. The video of course just follows the DVD video format.

Here's the product link: http://ph.kumyoung.com/eng/product/product01_item09.asp

They used 3.5" SATA harddisk formatted as FAT32.
The harddisk only contain data and not any operating system or programs/firmware that it may use.

Songs are already represented by each file with the file extension KYD. (older mode Vivaus Pro ha KYC file extension, not sure if it the same format).
I can't really tell if the file is already close to a Midi file or if there were encryption, since I am not familiar with the .MID format. I tried renaming it to .MID and .KAR already, but can't be played. So, a conversion is necessary.

In the \RSONG folder, it has the following files:
  - EVENT.DAT - looks like it contains the list of new songs (referenced to other file) in the past 12 months
  - HIST.LST  - just a text file, listing the previous 12 months date
  - MEDSUB.DAT - no idea yet
  - SINGER.DAT - list of all the singer terminated by NULL character. They may be indexing in the file to the the singer name
  - SORT.DAT - most likely for indexing purposes
  - TITLE.DAT - List of all the titles of the song, it contains a header and additional DWORD value right after the song title
  - TITLE.INX - well, most likely the index for the titles (no idea yet)

I know, I don't have the details yet on the format, because I haven't checked it further. I am gathering different updates so I can study how the above files change.

What I have is that I can change by background videos by adding/replacing files in the \RMPEG folder.
Yeah, that pretty obvious, I won't describe it any further.

What I really found out is how to extract the .BIN package that can downloaded in their website as song update. The usual song upgrade process requires you to put the .BIN package in a USB flash drive. Boot the player, go to the setup menu, select the song update. Insert the flash drive and its should be okay.

The sad part is updating songs requires you to buy new IC (they call it pic ic) which can be used for 3 updates and you cannot skip an update. It costs 450 pesos (USD 9.50).

If I can upload the song files directly, they I can save some bucks. The song files (.KYD) are just additional files while the 7 files I have listed above will be replaced/overwritten. So, not knowing the fileformat of those file is still okay for now. I will need to test this first on the next song update they will provide.

I am also looking on how to add mp3 and music videos in it.

Anyone who's interested in this project. =)