Please read the following table in HTML format from a webpage and then answer the question in detail according to the table. Each table cell is defined by a <td> and a </td> tag. Each table row starts with a <tr> and ends with a </tr> tag. 'rowspan=m' and 'colspan=n' represents a cell spaning over 'm' rows and 'n' columns.

Webpage title:
Digital Rock (album)
Table title:
Release history
Table:
<table id='hittask' contenteditable='False'>
<tr> <th colspan=1 rowspan=1 > Country </th><th colspan=1 rowspan=1 > Date </th><th colspan=1 rowspan=1 > Label </th><th colspan=1 rowspan=1 > Format </th></tr>
<tr> <td colspan=1 rowspan=1 > Japan </td><td colspan=1 rowspan=1 > 19 July 2006 </td><td colspan=1 rowspan=1 > Sony </td><td colspan=1 rowspan=1 > CD, digital download </td></tr>
<tr> <td class="highlighted"  colspan=1 rowspan=2 > United Kingdom </td><td class="highlighted"  colspan=1 rowspan=1 > 31 July 2006 </td><td class="highlighted"  colspan=1 rowspan=2 > Tiger Trax </td><td class="highlighted"  colspan=1 rowspan=1 > Digital download </td></tr>
<tr> <td class="highlighted"  colspan=1 rowspan=1 > 29 January 2007 </td><td class="highlighted"  colspan=1 rowspan=1 > CD </td></tr>
</table>
Question:
When and on which label was Digital Rock first released in the United Kingdom on digital and CD, respectively?
Answer:
Digital Rock was released digitally on 31 July 2006 and physically on 29 January 2007 in the United Kingdom by Tiger Trax Records.