wrong sort order by track number

[piechny]

Hi,

I use RockBox v 3.13 to hearing podcasts.

To set what is properly order of podcasts I use ID3  tags.
In this field I put date of emission. Becouse in field 'track number' there isnt enough place to put full date I write only two digits of date:
ie: 090101,  100101  150101     (2009/Jan/01, 01/Jan/2010, 01/Jan/2015 respectively)
and now I have problem:

 Rockbox sort podcasts in wrong way:
100101
150101
90101               (here rockbox cuted leading zero)

as can you see
Rockbox properly recognizes  tracks tags as numbers,
but obviously treats  090101 as lager than 100101 - why?

Please, give me advice how to solve this problem
How to force properly sorting podcasts in properly way?

please help me - Jack


PS: Maybe in track number we can not put number larger than 2^16 (65536) - is this good way of thinking?

[piechny]

I did following observations:

 I renumerated track to 3-digit numer leading zeroes and, supprise,
 despite setting "Interpret numbers when sorting" setted to true
 track are wrong sorted!

Now player displays tracks in this way:

01. xx
02. xx
..
10. xx
100. xx
101. xx
...
110.xx
...
119.xx
12.xx
120.xx
...
199.xx
20. xx
200. xx
201.xx

Obviously characters in track numbers are treated as digits not as whole numbers
(despite correspondent opition in configuration - see chapter 8.2 in documentation)

So is it a way to force rockbox to properly sort by track number?

please help! - Jack