Rockbox General > Rockbox General Discussion
Clip+, Rockbox and Class 10 microSD card - it it work?
saratoga:
--- Quote from: pihhu on May 04, 2013, 08:04:59 PM ---ok, but it that true what he says in that post (about Random Access times)?
--- End quote ---
No, none of that is true. Regardless, this isn't the right place to ask about solid state storage performance.
bluebrother:
--- Quote from: pihhu on May 04, 2013, 06:04:41 PM ---"cards above Class 4 could be problematic on Clip+", this post specifically: http://forums.sandisk.com/t5/Mobile-memory-professional-cards/32GB-Class-10-Micro-SD-card-unexpectedly-removed-in-Android/m-p/295108/highlight/true#M2397
what do you think about it? I don't know what to think and I'm now scared to buy Class 10 for my Clip+.
--- End quote ---
I don't see much of a point in that guys post, and he's quite wrong.
- When reading audio files you're reading them sequentially. No need for fast random access.
- Cards are pretty fast these days compared to the early ones. The only thing problematic is writing (since flash memory requires you to erase a complete flash page even if you want to write a single byte), but when playing files from an SD card you're only reading it.
I'll skip the rest -- I pretty much disagree with his whole reasoning. Besides, he states:
--- Quote ---Class 10 = High Write/Read, Very Low Random Access response times.
Class 2 = Low Read/Write, Very High Random Access response times.
--- End quote ---
which (to me) reads as:
Class 10: read / write is fast, i.e. high throughput. Low Random Access time means the access is fast.
Class 2: low throughput, i.e. slow read / write. Random Access is slow because access times are high.
Which pretty much means: Class 10 is fast. Class 2 is slow. So either he confuses things or puts it in a way it confuses people.
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