On Fri, 12 Jul 2013 12:57:33 -0400 (EDT) "Rob Owens row...@ptd.net"
sent this:
>----- Original Message -----
>> From: "Gary Dale" <garyd...@rogers.com>
>>
>> Good point about the use of FLAC instead of ogg. However, I wouldn't
>> advise a USB hard drive for backup. The problem is that they are
>> prone
>> to failure (as is any mechanical system), are expensive, and you need
>> multiple drives to have an offsite backup or redundant backups.
>>
>> Optical media works because you only need a single drive (the
>> expensive
>> component) while the media is cheap. Moreover the media is
>> lightweight,
>> compact and portable so you can store it offsite. The low media cost
>> allows for multiple copies providing redundancy.
>>
>> A single BD-R disk can store perhaps 75 CDs converted to FLAC format.
>>
>A friend of mine told me once that his company had archived some
>customer data on CD-R, but years later they found that the CDs were
>de-laminating. Has anybody here ever experienced this?
>
>I don't know what brand he used, and I don't know if the bad CD-Rs
> were all from the same lot, so my evidence is fairly
> limited... The oldest
>CD-R I have in my possession is probably only 3 years old.
>
>-Rob
Never seen de-laminating but the oldest CD's the oldest I have that I
can date accurately, because I wrote the date on them with felt pen, are
in February 2001.
The brand is Magnamedia which must have been cheap, because I wouldn't
have bought them otherwise, and a few Verbatim, which I was probably
given. I quickly read some files in various directories on them just to
see if they were still readable. They are and brought back some
memories. [laughing]
I think it's a lot about where you store them that affects their
lifespan?
Be well,
Charlie
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