Arex Posted October 28, 2005 Report Share Posted October 28, 2005 Has anyone tried using 4GB cards yet in their RNS-E? I believe there are also some limits (e.g. number of tracks per card) that the unit has anyway, but I am not sure what these limits are? Link to comment Share on other sites More sharing options...
craigyb Posted October 28, 2005 Report Share Posted October 28, 2005 Yes, and around 460 files I think is the limit. Link to comment Share on other sites More sharing options...
PetrolDave Posted October 28, 2005 Report Share Posted October 28, 2005 The thread I read on http://www.navplus.us suggested that the limit is 512 files - including folders. So with 10 files per folder, 46 folders were recognised by the RNS-E (10*46 + 46 = 506) but when 47 folders were stored on the card (47*10 + 47 = 517) only the first 46 were seen and deleting on of those made the 47th appear. Link to comment Share on other sites More sharing options...
craigyb Posted October 28, 2005 Report Share Posted October 28, 2005 Your quite right, it started off around 460-470, then some more calcs were made to bring it to 512. Link to comment Share on other sites More sharing options...
Arex Posted October 28, 2005 Author Report Share Posted October 28, 2005 With you - so the limits have nothing to do with card size at all, just number of files and folders. Since I have my files ripped with quite a high bit rate a 4GB card might be worth the cost. Ta. Link to comment Share on other sites More sharing options...
muntyflumple Posted November 2, 2005 Report Share Posted November 2, 2005 I have had limited success with a 2GB card, I limited the number of directories + files to around 400. The card usually loads up OK, but often freezes when playing a song (either the time display stops updating, or it continues but with no sound). As a test I deleted all other albums except for the one containing the one that froze and it still hung. I the cleared the card and reloaded on the 2GB (and also a 128MB) card and miraculously both worked fine. The one wrinkle is that I am using an Apple Mac, and need to delete all sorts of hidden files from the card before using it (._DS_STORE and the resource forks for all MP3 files). I will try doing it via Windows next. Any ideas? Link to comment Share on other sites More sharing options...
paulredpath Posted November 2, 2005 Report Share Posted November 2, 2005 Ive been using a 2GB card with around 350 directories/files on it with no problems, its a sandisk card incase that helps Link to comment Share on other sites More sharing options...
PetrolDave Posted November 3, 2005 Report Share Posted November 3, 2005 [ QUOTE ] I have had limited success with a 2GB card, I limited the number of directories + files to around 400. The card usually loads up OK, but often freezes when playing a song (either the time display stops updating, or it continues but with no sound). As a test I deleted all other albums except for the one containing the one that froze and it still hung. I the cleared the card and reloaded on the 2GB (and also a 128MB) card and miraculously both worked fine. The one wrinkle is that I am using an Apple Mac, and need to delete all sorts of hidden files from the card before using it (._DS_STORE and the resource forks for all MP3 files). I will try doing it via Windows next. Any ideas? [/ QUOTE ] Sounds like you've got an MLC (low speed) card. There's been several discussions about this on the Navplus forum. To summarise, MLC (low speed) cards need all the data written to them in one go, and even then may experienece freezing after a period of use. SLC (high speed, and higher cost) cards don't suffer from this problem. I've got an RNS-E and ONLY use SLC (high speed) cards, and I've never seen the problem. Link to comment Share on other sites More sharing options...
peterb Posted November 4, 2005 Report Share Posted November 4, 2005 [ QUOTE ] To summarise, MLC (low speed) cards need all the data written to them in one go, and even then may experienece freezing after a period of use. SLC (high speed, and higher cost) cards don't suffer from this problem. [/ QUOTE ] Oh great - more variables! How do I tell whether the cards I have are MLC or SLC? Link to comment Share on other sites More sharing options...
PetrolDave Posted November 4, 2005 Report Share Posted November 4, 2005 The best clue is to look for the description "high speed" or "hi speed" or similar. Amazon provide good descriptions on their website. Most camera shops don't have a clue. Electronic and computer stores like Novatech usually give good descriptions too. Link to comment Share on other sites More sharing options...
forge197 Posted November 4, 2005 Report Share Posted November 4, 2005 So should I buy 2 or 4gig SD card for the impending arrival of my car with RNS-E? Link to comment Share on other sites More sharing options...
forge197 Posted November 4, 2005 Report Share Posted November 4, 2005 Looks like the cost will determine the answer and two gig is plenty 8-) Link to comment Share on other sites More sharing options...
PetrolDave Posted November 4, 2005 Report Share Posted November 4, 2005 I use 1GB cards at the moment, and I'm definitely going to upgrade to 4GB cards when I can "persuade" the holder of the purse strings to let me. I rip my MP3s at 320kbps so each track is about 10MB, so with an average album being 13 tracks that means I need 130MB and 14 "files" per album. So if the limit was the 512 files then I would get 36 albums per 4GB card, but that would need over 4.5GB - so I would still be capacity limited. I guess the answer to the question "what size SD card should I buy" has two parts - what bit rate do you rip at, and what can you afford? Link to comment Share on other sites More sharing options...
forge197 Posted November 4, 2005 Report Share Posted November 4, 2005 Mine are ripped at 192k looking around the 4gb are about £220 and the 2gb £130. I assume you have 2 x 1GB cards and use both slots, how does the system distinguish between slots or does it make what's on both SD cards available to choose from in one hit? I've got a little time to decide before the car arrives. Link to comment Share on other sites More sharing options...
PetrolDave Posted November 5, 2005 Report Share Posted November 5, 2005 It lists card 1 and card 2 separately, and you select either card 1 or card 2 to play. I had a bit of a disaster yesterday - I dropped one of the cards when I was putting them back in after changing the contents on my PC. It fell behind the display and there was no way I could get it out. So I had to get my radio removal tools and take the RNS-E out, disconnect it (with the display open) and turn it upside down - the card dropped out! Sighs of relief!!! Link to comment Share on other sites More sharing options...
forge197 Posted November 6, 2005 Report Share Posted November 6, 2005 thanks for that. Lucky you didn't lose the card the price they are. What a faff to get it back though. Link to comment Share on other sites More sharing options...
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