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M-walker Mp4 Players
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  #1 (permalink)  
Old 19th Jan 2009, 9:47 pm
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Default M-walker Mp4 Players


I'm a little new to this stuff, but I felt like this needed some sort of commenting on. The internet has a sparse amount of info for these players, so I thought I could add to it as a semi-experienced buyer.

I recently purchased an M-Walker Mp4 Player at a local computer surplus store. I was a little puzzled with the lack of detail, but I was able to determine the likely model of my particular player:
http://www.quantum-optimum.com/mp4/bl362.html

BL362 Bromine
2.8" TFT display, slim design
Support AVI, MP3, MP4, WMA and WAV format
Support mini SD expansion
Built in speaker

FM & Voice recording, USB flash disk
Built in 1/2/4/8 GB memory

My particular model is a 4GB, and determined that it isn't hacked. It's black and has a big V2 printed on the back.

Btw, if you bought one of these and are looking for possible missing utilities, you can check out the manufacturer's site:
http://www.quantum-optimum.com/
Go to the support tab at the top and click on the link to drivers. It has most of the MP4 players listed. Why not "all" is a mystery to me.

Well, lets get started.

Packaging:
Kind of hard to look at. It's an unpleasant shade of purple with fingerprint-prints (heh) all over it. I guess that's to promote the "touch" aspect but really it looks like those lolworthy graphics you get in those newer detective shows.
It comes with a power adapter, USB to USB AM-Mini 5 Pin cord, stereo headphones, manual, and software. The standard stuff, though I would have preferred it come with a strap, too :V

UI:
Very tidy looking interface. Most of it is black but the icons are nice and bright so they're pretty easy to see. Everything is consistently blue, and each menu has all the major functions you would otherwise use buttons for (ie. up, down, back). However, the options icon appears in places where it isn't used sometimes, which I found sort of confusing. It would have been more appropriate to leave it out for certain menus.

As for the buttons, they are small and horizontal across the bottom. A bit of a nuisance to use, but I guess since this is a touch model, the emphasis is on that feature. However, this poses a problem when entering settings and such. The "confirm/enter/okay" button is needed anyways in certain options (ie. settings) which kind of renders touch moot. Also, one other problem with the unit is they consolidated the On/Off function with the "back" and "hold" functions. A little messy, IMO.

Audio:
Goddamn, this unit is loud. I tried it at the lowest volume setting with in-ear headphones and the unit gave me a real headache. Even with the stock headphones, the unit would be loud enough to bother the person next to you. Hopefully this is addressed in a firmware update, but for now if you are planning on getting this, either get phones with an inline volume control or buy one separately. Don't have one on me now to really give the sound quality a review (away from home).

As for the built in speaker, it hisses quite a bit but it's very audible even at the lowest settings. I think this may have been what the manufacturers had in mind when they made the unit very loud (ie. enough for the built in speaker) but I guess didn't consider the effects on the phones.

There are five equalizer settings: Normal, Classical, Pop, Rock, and Jazz. Not much of a noticeable difference with the built in speaker, except that the classical and jazz settings are significantly quieter than the others.

What I didn't expect from such a cheap unit is that the music continues to play even when you've returned to the root menu. So you can listen to music while viewing photos Although there is a little delay when one returns to the song itself. Not so irritable, since using any of the other functions doesn't seem to interfere with the playing.

Video:
The unit has a very nice 2.8" screen and the video player has the option to flip vertically for viewing. This feature is especially nice since it expands the picture to fill the screen. Viewing angle is okay, but is inconsistent depending on the angle. I'm assuming the screen is lit from the top. It's not so great with darker shades, but is fairly good with bright colours.
The example .avi files have the maximum resolution to be 320:240, and supports Xvid codec and the audio stream as mp3. MediaInfo actually shows a bit of a discrepancy, so the unit is probably using an older version of Xvid. This means no mencoder - you're better off using the Surround Mp4 Tool ( http://www.oem-drivers.com/2007/11/1...d-mp4-tool-31/ ) that comes with it.

Camera/Photo:
It stinks. Even with a fair amount of lighting everything is a hue of green/yellow. Don't expect too much from this particular feature. Although nifty, it could have done without it. same goes for it's function as a webcam.

Other worth mentioning to note:
The biggest flaw to this unit is there is no way to adjust brightness. I was a little disappointed in this - the benefits to this function should be obvious. Also, there is little to no instruction on how the playlist function works. When one creates a favorite in the "My Favorites" option, one is left with a blank file with no clear way of managing. The file extension is *.alt, btw. Something for future reference. Maybe it's just me, but I had gotten used to arranging music using the directory structure, so the lack of a playlist to supplement this sort of bothers me.

Conclusion:
Overall, I have mixed feelings about the player. On the one hand, I am very fond of using it as a video player. On the other hand, the undocumented features of the music player makes me reluctant to give up listening with my Focus Mp4 player. I'll still continue to experiment, though.
Did it live up to the price I paid for? Not really. For $50 I think I could have spent it on something better. Well, not really. I probably would have blew it on something anyways.
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Old 22nd Jan 2009, 2:41 am
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Default Re: M-walker Mp4 Players

Great review, Doesn't sound like a bad player for 50 bucks.
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Old 2nd Mar 2009, 6:30 am
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Default Re: M-walker Mp4 Players

I have this same player and it went dead a few days ago. First the media files appear to have disappeared then I ran a disk scan and it recovered them all to FILE0001.CHK and so on.

I expect that the hidden partition became corrupt too, as now there is no firmware loading. It loads to a blue screen and the words USB DISK on the screen.

I expect I may be able to install firmware with one of the firmware tools here - I'm still sorting that problem out.

As far as the function - there is no external volume control so variable volume between songs is a problem.

I found by creating a MYFAVORITES list and adding all songs, then creating a second list and adding one by one from the first list works well. Also you can open and edit the favorites list (which is nothing more than a file list like c:/audio/song1.mp3; c:/audio/song2.mp3). Edit it with a text editor - the first item needs to be added twice because it will ignore the first item after editing. Otherwise, it appears to use the edited file just fine.

I am hoping to be able to restore the firmware if I can find it here on mympxplayer.org.

TheWanderingEye - if you are able to extract your firmware or direct me to the same firmware download I would be very appreciative!

Thanks!
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Old 25th Aug 2009, 9:29 am
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Well, after 7 months it finally died. I had gone and purchased another portable multimedia player not too long after and gave the V2 to my younger brother. He seemed to have gotten accustomed to it.
However, the problems Astablasta described started to turn up. I was transferring some songs he wanted the other day and it died.

Never did figure out how to access the hidden partition and possibly dump the firmware.
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Old 25th Aug 2009, 10:11 am
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This player doesn't have an hidden partition it's a Rk2608 player, only RK27xx series can be extracted this way.
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Old 8th Sep 2009, 10:04 pm
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Quote:
Originally Posted by knob View Post
This player doesn't have an hidden partition it's a Rk2608 player, only RK27xx series can be extracted this way.
Ah, is that so. Thanks for the info.
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Old 15th Sep 2009, 10:47 am
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Default Playlist

Must be similar to the AnyKa chip one that I bought.

The ALT playlist format is just the full pathname starting with C:/AUDIO/.....mp3, separated by semi-colon ";", encoded in little-endian UTF-16 (e.g. two bytes per character). If you are clever you can hack these together using VI.

I have take the java source for PlayListSE and hacked support for saving in this format - so I edit the playlists in winamp M3u format, then upload them into PlayListSE to save as ALT. If you are so included add the following to PlayList::saveAs() function:

if(suffix.equals("alt")) {
for(ctr = 0; ctr < size(); ctr++) {
String songPath, line8;
line="";

tempSong = (Song)get(ctr);
songPath = choosePath(relRoot, tempSong);
line8 = "C:/" + songPath.replace("\\","/").substring(0,songPath.length()-2) + ";";
for (int i=0; i<line8.length(); i++) {
line = line + line8.charAt(i) + '\000';
}
try {
outFile.write(line, 0, line.length());
} catch(IOException e) {AppFrame.doError("An error was thrown while writing the m3u file " + outFileName);} //in case something blew up
}
}
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