Reply
GPH
Newbie
Posts: 18
Registered: ‎09-01-2011

Re: Confirmed - Micro SD Load Problems due to aac file load failures

saratoga,

 

I stand by my test results and not by your suppositions that my tool that shows container signatures must not work right or that my 13 test files must not be iTunes created files when in fact they are.

 

Do you work for SanDisk Customer Support? It sure sounds like it. Your responses sound like somthing they would say. Denial there is an issue here.

 

I look forward to drlucky's response at this point.  That could actually be helpful and constructive.

 

GPH

SanDisk Guru
Posts: 1,265
Registered: ‎04-24-2009

Re: Confirmed - Micro SD Load Problems due to aac file load failures


@GPH wrote:

 

I stand by my test results and not by your suppositions that my tool that shows container signatures must not work right



I didn't say it didn't work right, I just pointed out that it doesn't mean much Smiley Happy

 

 

 

 


@GPH wrote:

or that my 13 test files must not be iTunes created files when in fact they are.

 


 

I didn't say that either, I asked if you could confirm that they were.  

 

 

 

 


@GPH wrote:

 

Do you work for SanDisk Customer Support? It sure sounds like it. Your responses sound like somthing they would say. Denial there is an issue here.



ahahahahaha wow

 

 

 

SanDisk Guru
Posts: 4,548
Registered: ‎07-18-2007

Re: Confirmed - Micro SD Load Problems due to aac file load failures

sandisk support confirmed the issue with MPEG4 codec mp42 version 2 and said it is not supported. 

SanDisk Guru
Posts: 1,265
Registered: ‎04-24-2009

Re: Confirmed - Micro SD Load Problems due to aac file load failures


@drlucky wrote:

sandisk support confirmed the issue with MPEG4 codec mp42 version 2 and said it is not supported. 




I think they confirmed that they had a problem with Microsoft's AAC encoder.  I haven't heard them say anything about iTunes AAC files.  If they really didn't support either WMP or iTunes encoded files that would exclude almost all existing AAC files.  Its hard to imagine they wouldn't have noticed that sooner.  

 

 

SanDisk Guru
Posts: 4,548
Registered: ‎07-18-2007

Re: Confirmed - Micro SD Load Problems due to aac file load failures


@saratoga wrote:

@drlucky wrote:

sandisk support confirmed the issue with MPEG4 codec mp42 version 2 and said it is not supported. 




I think they confirmed that they had a problem with Microsoft's AAC encoder.  I haven't heard them say anything about iTunes AAC files.  If they really didn't support either WMP or iTunes encoded files that would exclude almost all existing AAC files.  Its hard to imagine they wouldn't have noticed that sooner.  

 

 


Correct Itunes AAC is supported. 

SanDisk Guru
Posts: 8,152
Registered: ‎12-11-2007

Re: Confirmed - Micro SD Load Problems due to aac file load failures

I knew there was a reason why I've always encoded to the universal and trouble-free MP3 format . . . .    Smiley Wink

SanDisk Guru
Posts: 1,265
Registered: ‎04-24-2009

Re: Confirmed - Micro SD Load Problems due to aac file load failures


@drlucky wrote:

@saratoga wrote:

@drlucky wrote:

sandisk support confirmed the issue with MPEG4 codec mp42 version 2 and said it is not supported. 




I think they confirmed that they had a problem with Microsoft's AAC encoder.  I haven't heard them say anything about iTunes AAC files.  If they really didn't support either WMP or iTunes encoded files that would exclude almost all existing AAC files.  Its hard to imagine they wouldn't have noticed that sooner.  

 

 


Correct Itunes AAC is supported. 


 

 

 

Yes I thought so.  With that in mind I'm going to repeat what I said above.  If the original poster has files from iTunes that don't play, and iTunes files are expected to play he should probably try and figure out whats special about those files.  My guess is that they actually weren't encoded by iTunes, or if they were they were subsequently processed by some other program that rewrote the original iTunes MP4 container in such a way that it broke the files.  Knowing exactly how this happened could be useful.  

 

 

 

 

 

 

Newbie
Posts: 1
Registered: ‎10-06-2011

Re: Confirmed - Micro SD Load Problems due to aac file load failures

 

1st off let me start by saying I love my Clip Zip (CZ). It is a great alternative to the iPod for those of us that want a simple MP3 player that is small and convenient. 2nd I want to thank GPH so much for posting the same problem I had with my CZ and for posting your research to support your findings. I searched the Internet like crazy trying to find out what the problem was with my CZ and why I couldn’t load my music. My thoughts went from a bad memory card to a bad CZ player. Luckily I also got my wife a CZ the same time I ordered mine and tested hers and still had the same problem. Finally I stumbled upon your post with similar results to my own. Thank you again.

 

I took the research a step further and reviewed my music using Mp3tag v2.49. You stated that the CZ doesn’t play AAC format files even though it was stated by SanDisk. I checked the Codec tags of my music and saw that about half of it was in AAC iTunes version “X”, where X would be whatever version of iTunes I had at the time that converted my music to AAC format as I added music to my iTunes library. I used iTunes back in the day when I had an iPod but no longer rely on that as my MP3 player since I found my CZ.

 

I also checked the tags in Windows for my music. I saw the same result where half of my music was in MP3 the other in AAC but one thing I also noticed was that some were M4P or protected music I had in my library. I had about 20 to 30 songs that I either got from iTunes or from CDs ripped. I forgot to rip those CDs to MP3 format instead of ripping them on the default setting of M4P.

 

I took my MicroSD card out of my CZ and put it back into my PC. I did a search for M4P music on my SD card and found that 20 – 30 tracks from different artist were in M4P format and AAC tagged. I removed all M4P music from that card and reinserted the card into my CZ. The card finally loaded on my CZ and my music played without any issues.  It took about 3 mins to load or so b/c I have a 32GB card of which 20GB is full of music. Those files are still in AAC format on the card but the M4P music was removed. Since the music is protected I don’t think the SanDisk can play it and doesn’t know what to do with the files as it tries to refresh its media causing the player to freeze and then crash prompting a reboot. Try checking your internal and external storage for any M4P or protected music. If you find any of these files try to remove them from your card 1st and try reinserting your card back into your CZ to see if there is a different result. If successful try adding the rest of your unprotected AAC music to your card and see if it will load your music again.

 

If you bought any music from the iTunes store I can almost guarantee you that it is protected and Apple will not authorize you to play this music on any other device except your authorized iPod or other authorized equipment such as an iPad, iPhone etc.

With the M4P music I had problems playing it on iTunes (b/c some of that music I got from a friend’s library and they would need to log in to my iTunes account to play it), Winamp, Zune and Windows Media player.

 

There are ways around this. You can take the music on your PC that is M4P and use software to convert it to MP3 or you can burn your M4P music to a CD then recopy that burned music in MP3 format back on your PC.

 

Lastly, if you don’t want any of your music in AAC format you can use iTunes to convert your current unprotected AAC format music from AAC to MP3. iTunes will just make a 2nd copy keeping the original AAC but adding a MP3 copy as well. Careful for you can double the size of you library so make sure you have the space to do this. Also always have a backup in case something goes wrong before you start that process.

 

Hope this helps.

 

CincyJr

SanDisk Guru
Posts: 8,152
Registered: ‎12-11-2007

Re: Confirmed - Micro SD Load Problems due to aac file load failures

Actually, as to iTunes and DRM: current iTunes music is not DRM-protected; Apple stopped using DRM for music in early 2009, and so music bought from that point forward from iTunes is DRM-free. (The Apple change of policy did not affect music purchased earlier from Apple, however; although I believe that you also can convert your DRM-protected tunes to DRM-free tunes, for an extra fee.)
GPH
Newbie
Posts: 18
Registered: ‎09-01-2011

Re: Confirmed - Micro SD Load Problems due to aac file load failures

CincyJr,

 

It's good to hear from another CZ owner with some concerns about SanDisk's spotty M4A (AAC) support.

 

Out of 3100 songs, I had about 32 M4P files that were from some of my few iTunes purchases back in the day when everything was protected.  I also found I had about 24 newer iTunes downloads that were not protected. These were M4A files.  I found a way to convert the M4P's to M4A files, but I found M4A files themselves were an issue, so I gave up on M4A and converted all M4A files to MP3's. Once I went to all MP3's I was able to put 29GB of songs on my 32GB card and this left the player's 4GB for everything else, like podcasts, audio books, and recordings.

 

ITunes has an option to import files as either M4A's or MP3's.  I was using M4A as my import choice, but the issues I encountered with the Sansa not finishing the refresh when the M4A files were loaded to the card forced me to rethink this choice.  It is easy to mass convert the M4A files to MP3's in iTunes, so I went down the path of least resistance to resolving this problem.  Use MP3 format and be done with it.

 

I don't have the time to debug the flawed M4A file handling that the Sansa ClipZip exhibits.  Just recognize there are iTunes aac (M4A) issues and steer around them with MP3 format.  I wasted enough time trying to get SanDisk to acknowledge the aac(M4A) support issues and work towards a fix, but they were still in denial and said my card must be bad. 

 

I have since loaded all my 3100+ songs to the card thinking I will put all podcasts, audio books and recordings on the player's memory.  I thought this approach would minimize the player refresh cycle when any content changed.  The podcasts get added and deleted regularly, so I wanted to keep refresh cycle times to a minimum.  I am disappointed to report that any adds or deletes to the player memory result in player refresh cycles that still take over 10 minutes with the almost full memory card still inserted.  I guess SanDisk would say it takes that long because I have so many songs on the card, but I think their refresh routine is inefficiently written assuming a much smaller memory footprint than most people will ultimately try and use with this player.  Your use case appears similar to mine.  You are using the 32GB card like I am.  Adding or deleting a few podcasts to the player should not take over ten minutes to update the players "database".

 

That is unfortunately the situation, even using all mp3 files.  What is your file count and what are your refresh times like?  How are your files spread (player memory versus card)?

 

GPH