backup size constantly increasing

[dblake2]

i bu my xp partition twice a week & for a couple months have noticed it increasing by ~200mb every backup.
i just started recording the size of all files >50mb & can't see why its increasing.
for example: backup on 4/13/14=13847mb with 25 files found >50mb=6.27gb
backup on 4/23/14=14023mb with 25 files found >50mb=6.26gb
so, the backup has increased by 176mb while large files have shrunk by 10mb.
any ideas as to whats going on or how I can find what files are constantly increasing?

[TeraByte Support(PP)]

Are you accounting for hidden files (restore points, recycle bin, etc.)? It could also be smaller files adding up (program updates, temp files, etc.).

[Eric]

And what about your datas (doc, photos, videos...)? Where are they stored? Inside the xp partition or inside another one?

[dblake2]

i run ccleaner b4 every bu so that takes care of recycle bin, browser cache, etc.
i did have a market data prgm on c drive that updated every day but moved that to my data partition about a month ago, so that wasn't it.
i just ran a search for files >1mb but <50mb changed 2 days ago or later, came up with 36 files=154mb but i'll have to run that afer each bu to be able to compare.
i have plenty of space its just very curious why the constant increase.
my oldest bu is from 3/26 =12248mb & the one from 4/23=14023mb

[dblake2]

hmmm-todays bu came in at 11373mb, a 2.7gb decrease from the one 3 days ago.
no change in files >50mb. i'll have to wait for next bu to compare the ones between 1 & 50mb.
very strange.

[TeraByte Support]

it picks up any changes on the sector level, so if you defrag, that may
cause a lot of changes.

"dblake2" wrote in message news:7954@public.image...

hmmm-todays bu came in at 11373mb, a 2.7gb decrease from the one 3 days ago.
no change in files >50mb. i'll have to wait for next bu to compare the ones
between 1 & 50mb.
very strange.