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Recording image on DVD (and trying to get it to restore)

Regular Poster
Posts: 15
Comments: 124

After reading some forum posts about storing images on DVD discs, I decided to try it myself.

I operate a desktop XP Pro sp3, TI Home 2009, build 9709.

I chose a small partition to make a backup image of, it was 5 GB in size.

The partition backup image seemed to record fine. The time used was about 10 minutes.

I then decided to explore the backup that was on two DVD discs.

I started explore from TI running on XP. I had disc-1 in the drive. TI immediately asked for disk-2, okay I loaded disc-2. Immediately it asked for disc-1, I loaded it. Immediately disc-2 was asked for. This could have gone on for years I think. Never once did the drive sound like it was turning at more than 1x speed. I gave up on exploring TI DVD disc stored images.

Now I decided to verify the backup DVD discs. After several swaps (remember that there are only two discs involved) verify started. After several minutes I noticed that the remaining time was two hours. Two hours to verify a 10 minute backup. I gave up.

My new experience tells me to stick to hard drives for images, they work very well.

Fungus

 

 

Forum Star
Posts: 17
Comments: 2991

Hello Fungus,

Thank you for using [[http://www.acronis.com/homecomputing/products/trueimage/ | Acronis True Image]]

I assume that you know it, but this subject should be extented because the content of the old forum was archived.

There is another way to place an archive to DVD/CD disks.

You can create an image set with the archive splitting size at 2 GB on a local hard disk drive and then to copy the created image archives to DVDs. In this case you will have to copy all the archives back to one folder to restore the image.

Once a full image is created as one consistent file it instantly becomes indivisible and in case it exceeds the limit of 4.7 GB (the maximum capacity of a DVD disc) you will not be able to divide it into parts and burn to DVDs. So when creating an image you should bear in mind where you want to store the image to.

We would recommend to set the archive splitting size manually if you are planning to transfer an image archive to DVD discs. The archive size should be set at 2 GB to avoid possible discrepancies when being restored later. This proviso relates to most of the modern DVD-writing software.

Thank you.

Frequent Poster
Posts: 2
Comments: 570

Fungus wrote:

After reading some forum posts about storing images on DVD discs, I decided to try it myself.

...

My new experience tells me to stick to hard drives for images, they work very well.

Fungus

 

You can imagine the joy if it was on a few more DVDs as well. I have pretty well abandoned using DVDs for data backup especially since HDs are so cheap.

Regular Poster
Posts: 15
Comments: 124

Oleg wrote:

Hello Fungus,

Thank you for using [[http://www.acronis.com/homecomputing/products/trueimage/ | Acronis True Image]]

I assume that you know it, but this subject should be extented because the content of the old forum was archived.

There is another way to place an archive to DVD/CD disks.

You can create an image set with the archive splitting size at 2 GB on a local hard disk drive and then to copy the created image archives to DVDs. In this case you will have to copy all the archives back to one folder to restore the image.

Once a full image is created as one consistent file it instantly becomes indivisible and in case it exceeds the limit of 4.7 GB (the maximum capacity of a DVD disc) you will not be able to divide it into parts and burn to DVDs. So when creating an image you should bear in mind where you want to store the image to.

We would recommend to set the archive splitting size manually if you are planning to transfer an image archive to DVD discs. The archive size should be set at 2 GB to avoid possible discrepancies when being restored later. This proviso relates to most of the modern DVD-writing software.

Thank you.

 

Oleg:

Thanks, I have never tried the method you suggest however I'm aware of it.

It is possible to copy two of the 2 GB tib segments to each DVD disc? Is this normally done?

My experience with dvd discs tells me that very full discs are often a problem.

Thanks,

Fungus

 

Frequent Poster
Posts: 2
Comments: 843

Hello Fungus,

Yes, you can copy some part of the archive to separate DVD drive, we've never heard about issues with full DVD media and inability to recover in such situations. However, please be aware that corruption of one DVD drive from set will make entire chain unrecoverable.

If you have some alternative way to store your backups (external USB hard drive, for example) - it's better and safer to use it instead of DVD\CD media...

Thank you.