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drm license for a portable device but not the pc that syncs

September 14th, 2006 - 07:15 pm ET by Zippity Do Dah | Report spam
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Is it possible to implement the following scheme with WMRM?

I want to create a "filling station" for a portable device, where customers
purchase DRM content at a kiosk at a store. After the customer purchases
content on the kiosk, they hook up their portable device via USB and content
is synced to the device (along with a license to play) at that time. Is
this possible?

Is there any way to prevent the kiosk from having rights to play the file,
or does the kiosk have to have rights in order to sync the content to the
device?

Is there any way to allow the DRM content to be copied off the portable
device and onto a PC, where the content can then be played? I mean:
allowing a limited number of PCs to copy content from the device?

I know much of this would be possible if the portable device had an internet
connection and supported Direct License Acquisition, but I want to support
devices that only hook up over USB.

Thanks!
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#1 Aisdon
November 01st, 2006 - 05:12 am ET | Report spam
> > Is it possible to implement the following scheme with WMRM?
>
> I want to create a "filling station" for a portable device, where customers
> purchase DRM content at a kiosk at a store. After the customer purchases
> content on the kiosk, they hook up their portable device via USB and content
> is synced to the device (along with a license to play) at that time. Is
> this possible?

The portable device here works as a WMDRM-NDR Device, which is to be
connected through USB/firewire/wireless/ethernet to a PC(windows media
player). The content is then synced to the device.



If I understand this correctly wouldn't this be a WMDRM-PD Device? The
content is actually on the portable device, it is not streamed to the device
from a PC or the kiosk. The portable device is (temporarily) connected to the
kiosk via USB and content purchase which is transferred to the device. At the
same time a licence is acquired via ILA through the kiosk.

> Is there any way to prevent the kiosk from having rights to play the file,
> or does the kiosk have to have rights in order to sync the content to the
> device?



I don't think that the kiosk would need rights to play the file but it would
need to have rights to copy the file an unlimited number of times.

> Is there any way to allow the DRM content to be copied off the portable
> device and onto a PC, where the content can then be played? I mean:
> allowing a limited number of PCs to copy content from the device?



Would I be correct in saying that there is no problem in the PC copying the
content from the device but each PC would then need to obtain it's own
licence to play the content?


Thats a good question. I haven't checked that. But from my
understanding the decryption and re-encryption scheme is too costly for
a device to be able to transfer the media to a PC. For this you require
WMDRM-NDT in the device.



Do you mean that for the PC to be able to play the content without acquiring
it's own licence then it would have to operate as a WMDRM-NDR and receive
content from the device which is operating as a WMDRM-NDT?

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