CD vs. DVD for High Resolution Digital Image Storage
Our
scanning and archiving services provide you with high
resolution
digital photos made from your old photos, slides, negatives, or advantix film. We have two options for storing your new digital photos: CD-Rom; and Data DVD. We'll discuss these
two formats in more detail below.
Additional Service Add On's:
Along with your high
resolution files we can also provide you with a number
of other output
options that make having a digital photo collection fun
and easy to use. Our other output options include: 1 - DVD
Videos of your photos: 2 - Uploading
of your photos to leading "Photo Sharing" and "online backup and cloud storage" web
sites
where you can backup all your digital photos and access them anywhere that has Internet access or from your iPhone or iPador as well as share pictures with family and friends via email or on social networking sites like Facebook: 3 - Contact
Sheets to easily locate the photo you're looking
for.
CD vs. Data
DVD for storage of your High Resolution Scans:
After scanning, your new digital photos need to be saved
to some type of digital media for storage and transport purposes. We offer
two options for storage of your new digital images: CD and
Data DVD. Most of us know what a CD-Rom is but the term
Data DVD may be new to you.
What is a Data DVD? A Data
DVD is not a DVD Video; it will not play in a set top DVD
player.
Data DVDs work just like a CD-Rom. They are a storage medium
for storing files just like a CD. The only difference is
they hold more information than a CD would. Data DVDs work
with computers like CD-Roms do. However your computer needs
to have a DVD-Rom disk drive to read our Data DVDs.
Ok, so which
is right for me?
The charts below compare the pro's and con's of each format.
We use Mitsui MAM-A Gold Archival quality CD-Rs and Taiyo
Yuden DVD-R media for our Data DVDs. Both of these are
high quality storage mediums that far exceed the quality
of media
you might find at your local Walmart. Please review the
charts below for a review of each format or click the
link
below to learn more about Archival Quality CD-R by visiting
MAM-A's web site at www.mam-a.com
CD: Mitsui Gold
Archival CD-R
data DVD: Taiyo
Yuden DVD-R
Pros
Cons
Pros
Cons
Estimated lifespan of 300 Years, much longer than DVD-R's
expected lifespan.
Estimated lifespan of 100 years. DVD's are not expected
to last as long as Archival Quality CD-R media.
CD-R's only hold 650 MB of data. Much less than DVD-R
media.
DVD-R's hold 4,700 MB of data, a little more than 7
times that of CD-R's.
Higher Order Cost: CD-R's hold fewer photos than DVD-R's.
More disks will be needed if your placing a large order.
Lower Order Cost: Because DVD-R's hold more photos
you will need fewer disks when placing a large scanning order.
CD's work with just about any computer and don't require
a DVD-Rom to be installed on your system.
To use a DVD with your computer you must have a DVD-Rom
installed in your system.
Less Organized: Less photos per disk means you may
have to find the right disk to get the photo you want.
More Organized: It's easier to find the photo you're
looking for because you'll have fewer disks.
* Media Lifespans are based on manufacturer's estimates.
Digital Memories makes no guarantees or warranties concerning media
lifespan or longevity.
Pros
& Cons of CD-R and Data DVD-R Media
Conventional CD-R
Mitsui Gold Archival
Quality CD-R
High Quality DVD-R
Estimated Lifspan
< 75 Years
300 Years
100 Years
Capacity
650 Megabytes
650 Megabytes
4,700 Megabytes
* Media Lifespans are based on manufacturer's estimates.
Digital Memories makes no guarantees or warranties concerning media
lifespan or longevity.
As you can see from the charts each format
has some benefits. If you want media that will last as long
as possible then Mitsui CD-R is the way to go. If you want
to be organized while keeping the cost of your order down
then Data DVD is the option for you. Please remember that
you will need a computer with a DVD-Rom to use our Data
DVDs.
How many photos
will fit on one disk?
This depends on the type of photo or film that is scanned,
the resolution the photo was scanned at, and the file format
the photo was saved to. We offer two file formats, TIFF
and JPEG. Click here to learn
more about TIFF & JPEG formats. The charts below
list the number of photos that may be stored on one CD or
Data DVD. The first chart is for 35mm slides or negatives.
The second chart is based on print scans of either 300dpi
or 600dpi organized by the size of the print scanned.
Film Scanning: number of files that may be saved to one
disk.
CD
Data
DVD
Scan Resolution
TIFF
JPEG
TIFF
JPEG
2000 DPI
45
185
330
1,340
3000 DPI
20
95
145
690
4000 DPI
11
68
82
495
* These
numbers are estimates actual number of files per disk may vary slightly.
Print Scanning: number of files that may be saved to one
disk.
Number
of Images @ 300 DPI
Number
of Images @ 600 DPI
CD
Data
DVD
CD
Data
DVD
Print Size
TIFF
JPEG
TIFF
JPEG
TIFF
JPEG
TIFF
JPEG
3 x 5
166
787
1,200
5,600
41
216
297
1,565
4 x 6
103
464
746
3,350
25
135
185
975
5 x 7
70
325
510
2,350
17
100
127
725
8 x 10
30
162
221
1,175
7
59
55
425
* These
numbers are estimates actual number of files per disk may vary slightly.
An Introduction to Digital Photography: This article
explains digital images, Resolution, and Megapixels.
It provides a brief technical background to digital
imaging.
Scan Resolution Help: This article explains scan resolution.
It looks at scanning resolution from three perspectives and makes recommendations
accordingly.
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