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nado
Guest
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 Posted:
Tue Oct 18, 2005 8:30 am Post subject:
A few q's about DRM |
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hi
OK here's what I want to do...
I'm going to try and sell podcasts online in 2 ways:
1) A monthly fee allowing the customer to listen to the podcasts/audio
streamed online
2) Charge the customer a fee per podcast/audio. So they can download it and
listen to it on their computer or put it onto their mp3 player etc.
Now I'm looking for the best solution to stop people from simply sharing
these podcasts/audio with their friends or uploading/sharing it online.
DRM:
1) Does it actually stop piracy?
2) If not, give me an idea of what they can do to get around it?
....I've read somewhere that all is required is that the file be burned to a
CD and the DRM is removed... is this true? What about P2P stuff?
3) Can files using DRM be easily used with all mp3 players? e.g. such as the
iPod?
4) Does DRM cost anything to use? (from the distributers view)
5) Any other methods you can think of to help me protect my files from piracy?
6) I've been thinking perhaps about embedding some identifying information
into the podcast in real-time (perhaps using ID3 tagging) and simply using
this as a way of deterring piracy as I can track who bought a particular file.
Any help would be greatly appreciated.
cheers
nathan
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nistvan_ro
Joined: 03 Oct 2005
Posts: 16
Location: Brasov, RO
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Tue Oct 18, 2005 11:43 am Post subject:
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for your questions about DRM here are a few answers
1) Does it actually stop piracy? - It is supposed to, but I seriously doubt it. Until files in the MP3 format are available, you cant do much.
....I've read somewhere that all is required is that the file be burned to a
CD and the DRM is removed... is this true? Well, I'm working right now on an online music store stuff, which has a client application for downloading and transferring the purchased files. Look at this what I saw: When you transfer from Media Player a DRM'd file to a mobile device, which doesn't support DRM, then MP automatically strips out any license content, and transfers the *DECRYPTED* (unprotected) file on the device. You cand then re-copy that file to other computers, and it will work. The answer to your question about CD-burning is YES. DRM is removed when you burn the files on a audio CD. But! You can only burn the files onto audio cd if the file has a license wich allows the file to be burned on audio CD!
3) Can files using DRM be easily used with all mp3 players? e.g. such as the
iPod? - actually I would say yes. If U use WMDM to transfer these files...
4) Does DRM cost anything to use? (from the distributers view) - I don't know, ask MS about this.
5) Any other methods you can think of to help me protect my files from piracy? - You simply can't. If you issue a license for a file once, and the file gets played on a computer, then the owner of the computer can do virtually anything with the played audio content. I know there are soundcards with Secure Audio Path available, but they are pretty expensive, so nobody will buy them.
My oppinion is that DRM is just another trial to get more money out of people's pockets. It will never really work as it should be. And worst thing is that if U distribute content with MS DRM, U are forcing your clients to use MS platform (aka Windows). What if there are ppl who don't like MS, and use Linuxes for example? They will not be able to listen to your files... so think twice about using DRM!!! This is just my personal oppinion. |
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Sebastian Gottschalk
Guest
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| Posted:
Tue Oct 18, 2005 12:30 pm Post subject:
Re: A few q's about DRM |
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nado wrote:
| Quote: | DRM:
1) Does it actually stop piracy?
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No. For that, DRM would need to work more than just occasionally due to
naivity.
| Quote: | 2) If not, give me an idea of what they can do to get around it?
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Either googling for the tools or simply rerecording it.
| Quote: | ...I've read somewhere that all is required is that the file be burned to a
CD and the DRM is removed... is this true?
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Of course is that true. CDs don't involve any mechanisms for fucking up
customers.
| Quote: | What about P2P stuff?
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Well, why not? If you're DRMed files can't be copyied or not even played
back, your customers will turn to P2P as a new source.
| Quote: | 3) Can files using DRM be easily used with all mp3 players? e.g. such as the
iPod?
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No. However, if you're using Apple's FairPlay DRM on content in MPEG4 AAC
Low Complexity format, you can at least use that on iPod.
| Quote: | 4) Does DRM cost anything to use? (from the distributers view)
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Yes, licensing costs to Microsoft.
| Quote: | 5) Any other methods you can think of to help me protect my files from piracy?
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Good quality, low prices. Of just one shop would offer me a lossless
compressed version of my favorite Anime Soundtrack album for a maximum of
0.50 ¤ per song, they would not just get a loyal customer, but also a free
advertiser.
| Quote: | 6) I've been thinking perhaps about embedding some identifying information
into the podcast in real-time (perhaps using ID3 tagging) and simply using
this as a way of deterring piracy as I can track who bought a particular file.
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At the current state of sciene watermarking doesn't work. It can be either
separated from the original signal, can be simply overwritten by embedding
even more watermarking signals or can be removed by nearby-lossless (means:
psychovisual encoding) transformations, depending on what mechanisms is
used. All known mechanisms are broken. So DRM is, but by design.
--
Dieser Schrieb stellt eine private Meinungsäußerung des Verfassers im
Sinne der gesetzlich garantierten Meinungsfreiheit dar. Wem das nicht
passt, der wende sich an das Bundesverfassungsgericht. Viel Erfolg!
Key: 0xA0E28D18 FP: 83AE 1136 1E2B 9767 8FB2 7594 4128 1A9E A0E2 8D18
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nado
Guest
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| Posted:
Wed Oct 19, 2005 6:24 am Post subject:
RE: A few q's about DRM |
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| anyone? |
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Alessandro Angeli [MVP::D
Guest
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| Posted:
Wed Oct 19, 2005 4:30 pm Post subject:
Re: A few q's about DRM |
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"nado" wrote:
| Quote: | 1) Does it actually stop piracy?
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No. As it is for now, DRM stops non expert or honest users
while it doesn't stop expert users who really want to break
it.
| Quote: | 2) If not, give me an idea of what they can do to get
around it?
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Many things.
| Quote: | ...I've read somewhere that all is required is that the
file be burned to a CD and the DRM is removed... is this
true?
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If you have the right to burn the WMA to a CDA (but this
right can be revoked), a CDA is uncompressed audio without
any DRM so, if you rip the CDA afterwards, you get non-DRMed
files. Of course, if the original WMA is not lossless, there
is a generational quality loss this way, but most users
won't notice, especially if the quality of the original WMA
was good enough.
| Quote: | What about P2P stuff?
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Once you strip DRM, you can do whatever you want.
| Quote: | 3) Can files using DRM be easily used with all mp3
players? e.g. such as the iPod?
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WM DRM only works with WMA files and not MP3 files, so you
need a WMA-capable player that also supports WM DRM. AFAIK,
iPod does not meet those requirements.
| Quote: | 4) Does DRM cost anything to use? (from the distributers
view)
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You only pay the cost of the DRM-creation software or,
rather, the license to use it.
| Quote: | 5) Any other methods you can think of to help me
protect my files from piracy?
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There is none.
| Quote: | 6) I've been thinking
perhaps about embedding some identifying information into
the podcast in real-time (perhaps using ID3 tagging) and
simply using this as a way of deterring piracy as I can
track who bought a particular file.
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You'll need to do this on a per-user basis but, if the file
is not encrypted, nothing prevents the savvy user from
stripping your ID tag. Audio watermarking would be a better
way, very hard to remove, but also very hard to implement,
besides all kinds of watermarking degrade the quality, even
whn it's not easily noticed.
--
// Alessandro Angeli
// MVP :: DigitalMedia
// a dot angeli at psynet dot net |
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Sebastian Gottschalk
Guest
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| Posted:
Wed Oct 19, 2005 8:30 pm Post subject:
Re: A few q's about DRM |
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Alessandro Angeli [MVP::DigitalMedia] wrote:
| Quote: | Audio watermarking would be a better
way, very hard to remove, but also very hard to implement,
besides all kinds of watermarking degrade the quality, even
whn it's not easily noticed.
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At the recent state of science, audio watermarking doesn't work. Depending
on the scheme you either do a nearby lossless transformation, embedding a
lot of additional watermarking overwriting the original one, separation of
carrier and watermarking signal through statistical analysis or re-encoding
it with any good psychovisual audio coder - one of those always work and
works without noticeably degrading quality.
Under assumption of an randoom oracle, a known oracle or a known mechanism
this is getting even worse...
--
Dieser Schrieb stellt eine private Meinungsäußerung des Verfassers im
Sinne der gesetzlich garantierten Meinungsfreiheit dar. Wem das nicht
passt, der wende sich an das Bundesverfassungsgericht. Viel Erfolg!
Key: 0xA0E28D18 FP: 83AE 1136 1E2B 9767 8FB2 7594 4128 1A9E A0E2 8D18 |
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