Nh900 Transfer Speed

[alereborn]

I'm new to MD and new to the forum. For a while now I have been doubting whether I should buy a HI-MD, specifically the nh900. One of my primary concerns is the transfer speed from the minidisc to the PC through the USB port because I want to use MD also for data transfer between computers. I have read somewhere that it is 9.83Mbps. I would like someone to confirm this and in terms of Megabytes, what would this be? 1,22875 Megabytes per second? or 14 minutes approximately to copy an entire minidisc from or to the pc? Could someone please tell me if what I am saying is correct?

Can I drag and drop data from and to the minidisc as if it were a removable drive?

Other questions I have: can I use a minidisc to jog? In terms of durability, the moving parts wouldn't wear off very rapidly? Would it skip often?

Atrac3plus at 256kb is equivalent to Mp3 at 320 kbps?

And finally, it's been very hard to find a nh900 lately... if someone knows where... I wouldn't like to buy a rh910 or rh10 because of the lack of line out and the "scratchability" of those machines.

Finally, is there any way to receive radio on a nh900?

Thanks a lot to everyone,

alereborn

Edited June 26, 2005 by alereborn

[The Low Volta]

welcome to MDCF,

answers to almost all of your questions can be found in the Hi-MD faq (here)

except for:

- the radio part (that could be found in the remotes faq) and the answer to which is: no

- and the jogging-question...I don't jog, but when I suddenly have to run a bit and my NH900 isn't stored properly it skips sometimes (so an armband case or something could be useful)

greetings, Volta

[dex Otaku]

One of my primary concerns is the transfer speed from the minidisc to the PC through the USB port because I want to use MD also for data transfer between computers. I have read somewhere that it is 9.83Mbps. I would like someone to confirm this and in terms of Megabytes, what would this be? 1,22875 Megabytes per second? or 14 minutes approximately to copy an entire minidisc from or to the pc? Could someone please tell me if what I am saying is correct?

PCM data transferring from HiMD to the PC [it's the same speed with both my NH700 and RH10] runs at between 2.5-3x realtime. A full 94 minutes on a 1GB disc takes 30-45 minutes to transfer, and possibly longer depending on whether you have a lot of tracks or not. A single large track takes less time than a bunch of small ones.

Download speed is about the same.

This is mostly a limitation of the media itself, not because of the transport used, low power concerns, or being limited to USB 1.1; The reason USB 1.1 is used is because the media itself doesn't [and can't] move data any faster than it's maximum speed [12Mbps].

The rest of your questions are answered already in the FAQ, though I will address this one:

can I use a minidisc to jog? In terms of durability, the moving parts wouldn't wear off very rapidly? Would it skip often?

I wear my NH700 or RH10 while walking [i walk fast enough to nearly keep up with people who are jogging], and have never had a single skip, ever.

The more vibration that the unit experiences during play, the more it has to seek to maintain the playback buffer in proper order and avoid skipping. The jogging itself [not jogging as in with your feet, but the motion of the player] contributes to wear and tear in general, as can be expected. That kind of error correction requires more head movement et al, so going for a jog might be the equivalent of playing a disc 3-4 times in terms of wear. Still, I've put my NH700 through quite a bit of my walking, and never experienced a single skip, and also have no problems recording with the unit still.

Eventually that kind of wear & tear will cause things like optical block misalignment, recording head misalignment, wormgear wear, &c. It's a mechanical device, after all. The lifetime of a particular unit depends on how much wear it's exposed to, and as I've said above, jogging with it playing is the equivalent of higher than normal wear.

I wouldn't like to buy a rh910 or rh10 because of the lack of line out and the "scratchability" of those machines.

While the scratchability of the units is a problem, the lack of line out isn't in my view. Just turn off the EQ and turn the volume up; my RH10 measures [with volume at 29/30] so close to line level that I consider it to be such. [We're talking a difference of 1-2dB.]

[alereborn]

Thanks a lot for the prompt replies.

alereborn

[Top Cat]

Hi there!

PCM data transferring from HiMD to the PC [it's the same speed with both my NH700 and RH10] runs at between 2.5-3x realtime. A full 94 minutes on a 1GB disc takes 30-45 minutes to transfer, and possibly longer depending on whether you have a lot of tracks or not. A single large track takes less time than a bunch of small ones.

My upload speeds for PCM are constantly only 2x realtime, and the recordings are usually one continuous track per disk.

What can be the problem?