Given the limitation Bloomberg imposes in terms of the number of days you can go into the past when retrieving historical intraday data, what are similarly reliable alternative solutions? I require some data for a one-time research project, so I would ideally want to download or purchase the data just once, without a subscription.
Complete intraday data history can be obtained through the Thomson Reuters DataScope Tick History (TRDTH) archive: http://thomsonreuters.com/tick-history
You may ask them for a trial subscription.
They provide trade and quote and there is also an API.
You may try HQD software, downloads 1-min interval data from Yahoo or Google Finance http://www.ashkon.com/downloader.html